Hi Dave,
After updating PF3 normally to version 3.15.1, I was ready to make a flight and everything worked perfectly, until the moment came when the window showing the ATC communications disappeared from my monitor.
I am still using FS9 with FSUIPC version 3.999z9b
Attached the file Debug_Monitor.log
I'm not in any hurry to get a solution as I've been pretty busy lately and I guess you're in the same situation. When you can, let me know about the solution.
I use this window only to take a quick look at the figures, in case I made a mistake when taking notes.
Thanks in advance and best regards.