Today I updated by brick to 3.3.1 and my Butterfly display to 3.2.1.

At first, operation seemed normal and PCAS targets were displayed ok. Just a few minutes later the display went into a reset loop which had a 2-5 sec period. The loop was a cycle between the display boot screen and a "radar" display with a single ADS-B target.

The problem was seen in "knob at bottom" orientation. I changed orientation but no ADS-B targets seen since then.

I'll continue to monitor this and will report if I learn anything new. I'd suggest not using this firmware for flight until the problem is understood..

Andy