Constraint Delay compensation not working

Hi everyone !
Trying to use constraint Delay compensation, and it doesn’t seem to work in cubase 10, whereas it works in 9.5.

Anyone has the same problem ?

Thx

Okay, did some more testing, it seems to have something to do with buffer size (it works at 512 but not at 256) and RME drivers might share some blame, but still, eveything works in 9.5