Hi,
Unhandled exception at 0x00007FFC523CBA34 (nvwgf2umx.dll) in PaintDotNet.exe: Stack cookie instrumentation code detected a stack-based buffer overrun.
> nvwgf2umx.dll!00007ffc523cba34() Unknown
nvwgf2umx.dll!00007ffc523cc5c3() Unknown
ntdll.dll!RtlpExecuteHandlerForException() Unknown
ntdll.dll!RtlDispatchException() Unknown
ntdll.dll!KiUserExceptionDispatch() Unknown
nvwgf2umx.dll!00007ffc51cc5ec5() Unknown
0000000000001b6d() Unknown
Seams related to nVidia ^^^
I have reinstalled using this version: paint.net.4.0.19.install.zip . Same situation. Maybe windows update created this issue for me.