No difference with float 32.
It's a shame because the RME Hammerfall Multiface DSP is a high end card.
Maybe the very active RME team can do something with the drivers to fix this. They usually can help one out when problems occur.
Thanks anyway.
A few years ago I owned one of these cards. Used it as recording / editing system connected through fiber optic cable to my Digital recorder. Always had problem getting Windows to use the card for other than its intended purpose. I could get it to work with some things and not others, so ended up using it for what it was intended to do and the internal sound card for everything else. Changed drivers read notes changed settings etc. Wonderful sounding card, pain to setup and get working.