1) Download blender and blender files from blender website. (not msi installer)
2) Unzip blender to their respective folders
3) Install cargo to blender 3.5 (worked first time for me)
4) In cargo > account choose new software
5) Pick unreal 5.1 and install plugin and send file to unreal engine. (worked for me)
6) Go into account and try to add blender 3.4 . I get the attached error.
Additionally I cannot edit the blender 3.5 version name it remains blank.
And lastly if I rename blender.exe to blender3.4.exe the software does not pick it up at all.