Does anyone know a fix on the umap save eror

Hi, I’ve been getting this error message since 4.17, and now also in the 4.18.1 update. I’ve tried reinstalling the engine, my OS. created new projects, and it keeps coming back, i’ve also tried sharing my projects with others, but they are unaffected by it. Anyone experienced this? it used to affect both umaps and various objects in the content browser, but now it happens more frequently and only for level files.

The asset ‘/Game/Levels/Master2’ (Master2.umap) failed to save.

Cancel: Stop saving all assets and return to the editor.
Retry: Attempt to save the asset again.
Continue: Skip saving this asset only.