I think caches are stored elsewhere on the system.
It sounds like the problem is caused by a plugin. To verify that, turn on Settings > Community Plugins > Restricted Mode and restart Obsidian (you might need to restart twice given this problem). If that fixes the problem, then update all plugins. If updating doesn’t cure the problem, you’ll need to track down the culprit. If you have a lot of plugins, the Divide and Conquer plugin can help.