Very Annoying!
I manage my dependencies with the package manager conan.io.
A normal path in conan looks like: /Users/macbook/.conan/data/unrealengine/4.18.1/epic/stable/package/3295083bcfe18a75e692460b53e9ab7209b94277/Engine/…
On Windows I can use “short_paths=True” but not on linux/mac (not supported and not needed for most applications). But UE has this stupid limitation for no reason on this platform.
So i will search for a solution on conan.io side → activate short_paths for linux/mac.
Or change the limitation in Unreal → is there a variable for this limit? (i´m building from source)