Hi KlausT,
Thank you for the detailed information! Can you post this on the AnswerHub though for better tracking and making sure this gets assigned to one of our Engine Support Techs?
Once you post this on the AnswerHub can you post the link here for anyone else who may run across the same issue.
Thank you!
Tim
A fix for one GPU hang with DFAO is in 4.5, hopefully it was the only GPU hang.