Plugin issues detected
Some (not all) plugins do not work in Illustrator version 26.3.1. But they work fine in 26.2.1, also they work in all previous versions 26... and 25...
I tried to fix it, followed the advice "Repair Visual C++ DLL (Windows)", but it did not help https://helpx.adobe.com/illustrator/kb/plugin-missing-issue.html?trackingid=TG8SLGS2&mv=in-product&mv2=ai
Windows 10 Pro 21H2
Marek Domke commented
We too have issues with an export plugin crashing illlustrator and being deactivated in version 26.3.1.
26.2.1 was fine
I have the same issue with those plugins too. Have reverted to version 26.2.1 for now.
Christos Georghiou commented
I have the same issue. Also followed the advice and even tried an uninstall/reinstall with no luck.