Developer studio 2.3.0 debug problem

Hi all!
yesterday I installed the oasis 2.37.4 and now I have the developer studio 2.3.0. In my engine I downloaded the firmware R7.47.4, to be compliant with the new open at release, but now I can’t use the debug feature. When I try to debug my app, I get the error i pasted below. Can anyone help me?

Problem Occurred: preparing the target for launch => ERROR: Timeout while handling command: class com.swi.tm.hlservices.target.internal.bundle.AtWdm2Callback
Open and load physical port COM1 => ERROR: Timeout while handling command: class com.swi.tm.hlservices.target.internal.bundle.AtWdm2Callback
Open port COM1 => DONE: Success
Load informations from target => ERROR: Timeout while handling command: class com.swi.tm.hlservices.target.internal.bundle.AtWdm2Callback
Waiting for module detection => DONE: Target detected sn:BE1390086703210 baudrate:115200
Switch to Development mode and check => DONE: Success
Switch to Development mode => DONE: Success
Pause : 300 milliseconds => DONE: Success
Check dev mode unlocked => DONE: Success
Enable persistent development mode => DONE: Success
Load model element: Trace Levels => DONE: Trace Levels received: [{0 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 32 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 1 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 33 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 2 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 34 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 3 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 35 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 4 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 36 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 5 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 37 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 6 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 38 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 7 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 39 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 8 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 40 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 9 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 41 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 10 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 42 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 11 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 43 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 12 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 44 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 13 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 45 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 14 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 46 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 15 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 47 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 16 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 48 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 17 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 49 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 18 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 19 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 20 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 21 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 22 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 23 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 24 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 25 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 26 [true true true true true true true true true false false false false false false false false false false false false false false false false false false false false false false false], 27 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 28 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 29 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 30 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false], 31 [false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false false]}]
Load model element: Tasks, Entities AndMailboxesMailboxes, Entities and Tasks => DONE: Tasks, Entities AndMailboxesMailboxes, Entities and Tasks received: [{0 “IDLE”, 1 “TEST”, 2 “CUS3”, 3 “CUS2”, 4 “CUS1”, 5 “GDB”, 6 “RDMS”, 7 “CS2”, 8 “NET”, 9 “OBX”, 10 “KBD”, 11 “WBT”, 12 “V24”, 13 “MUX”, 14 “SS”, 15 “SMS”, 16 “CC”, 17 “SIM”, 18 “MM”, 19 “SM”, 20 “SNDCP”, 21 “LLC”, 22 “RLD”, 23 “RLU”, 24 “RR”, 25 “DL”, 26 “MSR”, 27 “DAT”, 28 “SPV”, 29 “HACTIM”, 30 “ROOT”}, {0 “L3RR”, 1 “L3MM”, 2 “L3CC”, 3 “L3SS”, 4 “L3SM”, 5 “L3UT”, 6 “LAPD”, 7 “WTCH”, 8 “FLASH”, 9 “SIM”, 10 “HAP”, 11 “MMK”, 12 “MMT”, 13 “MMI”, 14 “ATI”, 15 “SPV”, 16 “MSR”, 17 “DATA”, 18 “HAC”, 19 “UTC”, 20 “SEQ”, 21 “L1C”, 22 “HWL”, 23 “RTK”, 24 “CUS1”, 25 “CUS2”, 26 “ADL”, 27 “HLH”, 28 “LLH”, 29 “OPIC”, 30 “SYS”, 31 “spare1”, 32 “L3GMM”, 33 “L3SMG”, 34 “SNDCP”, 35 “LLC”, 36 “RLD”, 37 “RLU”, 38 “GRR”, 39 “spare2”, 40 “UHW”, 41 “RDMS”, 42 “CUS7”, 43 “OBX”, 44 “DEV”, 45 “FCM”, 46 “IOB”, 47 “AUD”, 48 “NET”, 49 “spare6”}, {0 “LAPD”, 1 “MSR”, 2 “RR”, 3 “L1C”, 4 “SIM”, 5 “SIM HD”, 6 “CC”, 7 “MM”, 8 “SMS”, 9 “SS”, 10 “DAT”, 11 “HWL”, 12 “V24”, 13 “WBT”, 14 “IP”, 15 “OBX”, 16 “PPS”, 17 “SM”, 18 “SNDCP”, 19 “LLC”, 20 “RLD”, 21 “RLU”, 22 “RDMS”, 23 “CUS1”, 24 “CUS2”, 25 “CUS3”, 26 “CUS4”, 27 “CUS5”, 28 “CUS6”, 29 “CUS7”, 30 “OPENIR”, 31 “HACTIM”, 32 “ROOT”, 33 “TEST”, 34 “GDB”, 35 “KBD”, 36 “NET”, 37 “CS2”, 38 “MUX”}]
Load model element: IMEI => DONE: IMEI received: [359193031112519]

The 7.47.4 FW sometimes fall in the “frozen” bug which already exists on FW 7.51
Please refer to this post to know how to workaround the issue: https://forum.sierrawireless.com/t/developer-studio-2-3-0-released/5995/1