Almost all actors disappear when loader a different level and reloading it

Hello!

Whenever I open a different level inside the same game most of the actors in the map from the included images disappear and i don’t know how to fix this. I saw one person with a similar issue and their solution was to rebuild everything from the ground up because it was a bug. I feel like there should be a better solution because I will not be able to remake everything from the ground up in this case… Does anybody have a nice fix or workaround for this?

This happens because your assets are loaded improperly. If you add all the assets you have into the same blueprint as the assets that do show up properly you can circumvent having to build it all over again. Still quite a tedious process though.

This sadly still does not work as it seems to somehow corrupt the blueprints…