I am not yet sure what it is .....
Yes, the aliasing is gone (most of it) - but now my Kemper sounds dull - like a blanket over all my patches.
I am not sure if it's only me or if others hear the same.
I'll downgrade to check it out - currently do I not like ANY profile.
Edit:
For whatever reason after some firmware updates and a system reset is all fine now.
If you have the same problem please report in this thread or inform support BEFORE you do a system reset - to collect more data about this.