2.9.3 was not released

I'm unable to reproduce crash

After I updated to 2.9.3, my screen keep flashing every several seconds. And it shows me a black screen says "hold esc to prevent sib from loading". So I hold the ESC key for over ten seconds and I have tried many times but it still keeps loading.... everything is fine after I uninstalled it.

2.9.3 release supports build 20201