Here are few more that I have experienced for you Bert.
Engine sound on Start: Inconsistent- Mystery every time I load. Could be the normal turboprop or it's a radial engine and sometimes its a piston engine.
Power Lever, Condition Lever, Fuel lever, and switches on the overhead: They will work fine sometimes, but on many other loads they are not animated when selected or move when the assigned levers are moved. I can hear the click when selected and the sound of going into a detent on the condition lever), but no movement on screen.
Noted hit to frame rate and audible popping noise when these bugs are present.
Every time I experience these I swap back to another aircraft and everything is good. It's bad enough that I'm going to leave the PC12 in the hanger for now.
System is a AMD 5900X | EVGA RTX 3080 Ti | 64 Ram DDR4 | Honeycomb A and B