[PC] Repeatable Crash – SystemError: unknown opcode in Autonomy (No Mods)

Mods/CC:

None – Fully removed Mods folder before testing

localthumbcache.package deleted before launching

Reproduced on a brand-new save

Steps to Reproduce: Launch The Sims 4 on a fresh save with no mods or CC. Usually when on a busy lot or when travel to another lot. It seems to happen randomly. It's happened with a full household with all sims being human, a full household with all being human and one fairy sim. It's happened with a single sim. 

Expected Result: Being able to play without randomly crashing every 30-60 minutes.

Troubleshooting Tried:

Removed all Mods/CC

Deleted localthumbcache.package

Game repair via EA App

Lowered graphics settings

Reproduced in new saves and existing saves

Happens in both populated and empty worlds

Additional Notes: May be related to recent autonomy changes or performance regressions introduced in latest patch. It's only happened since Enchanted By Nature.