Imports stopped working

[cvbbest]

So I've imported loads of models a long time ago and they've always been working like they should. However, last time I saved my map almost all of them stopped working. Does anyone have any clue how to solve this? I changed before it happened, except closing down WE and opening it up at another time, so I have no clue what to do. Feels kinda bad having to redo everything. I'd really appreciate any help.

I've added some pictures if that helps in any way.

 

[DoomBlade]

Delete all the imported files from the map and re-import them. You can import multiple models at the same time if you have them all located in one folder.

Import files --> choose folder with all models.

 

[A]mun]

wasn't that issue solved by restarting the computer?

 

[Shar Dundred]

If you used the "Test Map" button without saving before doing that, this will keep happening.
The file size of imports will drop to 0 and they will not appear ingame.
Always been an issue. Never EVER use that button imo.