Boot Issues on 2012 iMac 27”

Has anyone else had this problem? My iMac auto updated to a newer version of MacOS Ventura last night. Today I tried to boot the computer and I’m stuck on the login screen. The screen goes blank every 5 seconds. I can click on my account, but as I type in the password the screen goes blank and then I’m back to the login page with all the accounts. I’m thinking it’s a graphics issue related to my Memoji profile image not being able to render. Obviously the fix is to reinstall opencore so that the graphics acceleration works, but I can’t do that if I can’t log in. Any advice??

submitted by /u/the_ruler_of_reddit
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