I do not understand why this Steam Cloud is in the editor if it does not save anything useful.
By the way, when I do maps, the first thing is to upload it to the Workshop, I leave it in "Private" visibility, and besides being able to test it continuously, it keeps all the versions that you update. When you consider that it is finished, you only have to change the visibility to "Public".
I created a map, I uploaded it to the workshop, until there is everything right.
My hard drive failed, I lost everything I had, unrecoverable.
Now I want to edit that map, but I have nothing left of it.
The only thing I have achieved is to download a file.dds in which when I put it to the editor I can see my map, but I can not interact with anything from it, if I click on "Build" everything disappears, since there is no reference .xml.