Matygoo

That worked, Thank you all a lot. All is good again 👍

I didn't know that. Where i'm at currently i deleted everything (except my levels) and reinstalled both gzdoom and udb, it's all working again and the levels open now, But, it's blank and i have to select Doom2.Wad manually every time unlike before

It's this damn OneDrive, Even after i disabled it

What can i do to fix it? I downloaded the folder, But it went to Downloads, So i dragged to where it was before and it replaced the green ticked one, But now they have blue arrows and still wont open

About the same time the pc updated and keeps going on about one drive (Pop up notifications)

I was using UDB as normal, It asked for an update so i did. Now it won't open anything saying it can't find resources. But all folders are still there, I even tried re-downloading. Everything (Levels i made and doom game) are still in there place, I can see them in the "Open" folder as usual