TFRP not detected by MSFS2020 when plugged in the TCA quadrant RJ12

One last bit of advice : When you click on RUN to compile your profile from within TARGET, you get this log window:

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It usually takes about 10sec on my pc to complete before displaying “main returned 0”
If this process is quite instantaneous, something went amiss and MSFS will not display any of your TM devices except the useless combined gimmick
I only found this way to “reset” TARGET in this case, by fully shutdowning my computer, wait a few minutes and restarting… Can’t explain why and how, but it works.
IT and Middle-Aged witchery are really good friends!