With the same setup as in the above-mentioned thread, downloading doesn’t work at 460800 baud.
The download progress box appears, but never shows any progress.
As previously noted, the ‘Details’ option in the download progress box doesn’t actually give any further detail - so it’s impossible to see where this is actually failing.
However, I do note that that the target does not reset - so it’s either not getting, or not accepting, the download command.
The download does work at 230400.
Downloading with AT+WDWL and 1K-XMODEM works at both 460800 and 921600 with Hyperterminal.
AFAIR, the download facility in TMT didn’t work above 115200 - has this limitation been (partially) inherited?