Linux - Saving a new Map: Path does not map to any root

I open Unreal Engine and open a project.
Then I create a new map.
Then I click “Save” or “Save As”.
Then it crashes directly:

Script Stack (0 frames) :

Fatal error: [File:./Runtime/CoreUObject/Private/Misc/PackageName.cpp] [Line: 967] 
LongPackageNameToFilename failed to convert '/home/username/A/simulation/unreal/Projects/myproject/Content/NewMap'. Path does not map to any roots.
Signal 11 caught.

The problem is, ‘/home/username/A’ does not exist.
The correct path is:
‘/home/username/B/simulation/unreal/Projects/myproject/Content/NewMap’

Note1: I do NOT choose any filepath. I think this is some kind of configuration issue, e.g. ProjectHome.
Note2: I activated also the long filepath option under experimental (But this is not the issue, because it crashes due to the wrong NOT EXISTING filepath).

I deleted all intermediate and binaries folders already and rebuilt the project.

indeed very strange.
i use linux and this never happened.

does this happens if you create a new project as well?
is any hint on the actual name of the user “A” is it just another user in the system?

btw you haven’t compiled the engine with root/sudo, right?
what distro and version are you using?
what ue version are you using?
are there any symlinks in that path?

:grinning_face: