Force Rebuild on Load keeps resetting

So I went back to an old project of mine, and tried to fix some bugs, one of them was that the AI starts moving later then normal.
I checked the project settings and saw “Force Rebuild on Load” was checked. I unchecked this and re-started the engine, when I went back in the project settings it was checked again. I tired this 4 times and every time it kept resetting.
Later I tried deleting the intermediate folder (didn’t work), deleting the config saved folder (didn’t work), deleting the entire saved and intermidiate folder again (didn’t work), and I even copied the project and set it to 4.26 (wich also didn’t work).

I am kinda clueless on what to do to prevent it from checking itself.

problem is, when I uncheck it, it does work, but (it’s showing green when in simulating mode) but the AI doesn’t move even though it’s set to dynamic.

When I keep it checked, it either sometimes renders it in slowly or doesn’t do the navmesh at all.

Hope this is enough information.