Did a few tests this morning.
KORDv2 and KJFKv2 crashing , nothing in event viewer that I could see (initially).
P3Dv4.5HF1 , rebooted PC before each new test.
F22 KDTW
Went to KGRR
Loaded PMDG 747
Went to KORDv2
PMDG747 loading at KORDv2
a few seconds later
Crash , P3D just vanished, back to desktop
F22 KDTW
Went to KORDv2
Loaded PMDG747 loading
a few seconds later
Crash , P3D just vanished, back to desktop
F22 KDTW
Went to KORDv2
Loaded the Alabeo PA31
a few seconds later
Crash , P3D just vanished, back to desktop
F22 KDTW
Went to KJFKv2
Loaded PMDG747 loading
a few seconds later
Crash , P3D just vanished, back to desktop
Event viewer error found : couatl error ucrtbase.dll
F22 KDTW
Went to KPSP (Orbx)
loaded PMDG747 loading / loaded ok
No crash