I have been testing the 2021-03-17_1649 version. Two minor things I have found, otherwise it seems to be working well otherwise.
1. The P25 Frequency on the P25RX Configuration tab resets to 859.xxxx. It threw me for a loop at first because the system I monitor is 857.9625 and the frequency changed to 859.9625 but I didn't notice this right away. All I knew was that I was getting 0 BLKS/SEC and a -131db signal (no signal). Once I changed that frequency to the correct frequency, all was good.
2. I noticed that clearing all of the talkgroups, saving the config (so there are no talkgroups) and then trying to restore from TGP or Import CSV locks up the P25RX consistently. It gets stuck at Reading Talkgroups from the P25RX after restoring from TGP or the Import CSV function. I must power cycle the P25RX and restarting the BTConfig software.
3. After restoring the backup file made, the first 3 talkgroups are restored properly, the 4 is mostly restored with 4 gibberish characters in the description and the other 10 talkgroups are all messed up with totally incorrect information. The only way to restore the information is by opening up the CSV file (which looks correct) and manually re-entering all of the talkgroup information.
Attached is a ZIP file containing the screenshot of what it looks like after the Restore from TGP and Import CSV function was performed, as well as my TGP and CSV files I used to restore it from.
Other than these observations -- the software seems to be performing well.
Please note that I am running the BTConfig on Mac OSX during these observations so perhaps running it on a PC could be different.