I am getting this same error i.e. “HTIM: Delete order of main cell … 0xffffec78 0x4c0f0000” where the last number seems to change. It occurs when I disconnect from the network either by using AT+CFUN=0 or AT+CPOF.
EDIT: I am using Firmware version 7.46 with OpenAT Framework 2.37. Will try upgrading to 7.47 and see what happens…