While trying to answer to this thread, I started playing around with LV classes, interfaces and variants.
Sporadically when benchmarking my code, I had LV crash with the following log:
"e:\builds\penguin\labview\branches\2020\dev\source\linker\CloseOperation.cpp(1585) : DAbort 0xA967C488: The close operation should only ever execute in the UI thread."
I finally managed to narrow down the issue to the VI "Get LabVIEW Class Parent and Member VI Information" from the Data Type Parsing palette. When called repeatedly in a loop, it seems this VI can crash LabVIEW:
I could make LV2020-32bit, LV2021-32bit and -64bit, LV2022-32bit and LV2023-64bit crash, on my computer and that of my colleague.
I managed to make a minimal project and a procedure that should provoke the crash:
1. Unzip the folder;
2. Open the lvproj with any LV version;
3. Open "Main.vi", show its diagram;
4. "Run continuously" for 4-5s;
5. Clear full compiled object cache (Tools > Advanced > Clear Object Compiled Cache... > Select All > Clear);
6. "Run continuously" again for 4-5s. Here it should crash;
7. If it doesn't, try "Save All" (Ctrl+Shift+S), then go back to step 4. It is sometimes quite hard to provoke.
Regards,
Raphaël.
