UE4.25.3 crashes every time I load a non-default level and when I try to open or right click any assets from that level

Hey, everyone! If anyone’s willing, I’d really appreciate some help with this problem I’m having.

The default level for my project is an open-world level, which works perfecly (I’m able to play the level and access all widgets and abilities). But when I attempt to open the main menu level (during play or within the Content Browser) or any of the assets from that level (the game mode, player controller BP, or any of the widgets), the program crashes.

It’s been a few weeks or so since I’ve worked on the main menu, and I’m not sure exactly what I’ve changed since then. I know that I uninstalled a plugin that was being used in the main menu, and I also implemented a game instance fairly recently that I’m using in all my blueprints and widgets (save for the ones in the main menu, as I hadn’t gotten there yet). I reinstalled the plugin that was being used in the main menu, but it’s still crashing.

Here’s the crash log

Thanks so much for reading and for your help!

-Alex

I decided to just bite the bullet and create a new main menu from scratch. Oh well!