Cmd.exe failed with args

well, good morning together, please enlight me.

since two weeks or so i´ll trying to package an 426 project for android(quest2) with less fortune.
to the end of last week, i followed this tut UNREAL ENGINE 4.25.1 PACKAGING FOR ANDROID TUTORIAL UPDATED! - YouTube and was able to package in version 425, i noticed that i shouldn´t use numbers in the project name, check enviroment vars could also be an issue… but in 426 no way.
i tried the whole process with android studio 3.5.3 and 4.0.0 and 4.2.something, with ndk r21a-e
…i also tried different java locations but nothing changed

if someone could find the time for any advise, to that one kisses should rain from the sky