This one worked a bit better. I was able to build a vm with it and boot up.
BUT: I get the error, that the installation fails because of corrupted file (error 13). I also tried manually with the PAT-File from synology (MD5 matched), but no luck.
So last hope was:
But I can't import it due to incompatible hardware-options in the OVA-File.
Any help much appreciated!!
I think A.S._id should tell quicknick what he did. His vmdk has no cpu disabled. But his vmdk corrupts the pat file.... See above