PR3 Beeps

This just started for no apparent reason. My PR3 beeps whenever I select any function, throttle, power, using JMRI. The red-light flashes but it has always done that, heck my DB64’s do that but never beeped. I have tried other software, so it is not JMRI. I have rebooted PC, restarted PR3 and DB150

Setup is: PR3 connected to PC via USB - PR3 connected to DB150 via loco net cable - PR3 and DB150 powered by PS615.

Lights on PR3 are winking which indicates terminated, normal operation.

Trains operate normally. Now I don’t have any controllers, just a PC so the fix will have to be most likely through JMRI.

Digitrax doesn’t open till Monday so can’t contact them, so I figured maybe someone ran into this before.

Any suggestions?

Never Mind….
After thinking about it not sure if the PR3 was beeping or the DB150 was beeping. They are up high and close together, either way one of