Hi, I noticed the following issue (Mac, Sonoma, UFX III, Driver 4.10, Firmware 20).

With Smaart I measure the transfer function of the UFX III, that is I send PN to MADI 01 and loopback into Smaart. Nothing else running. In the phase window of the transfer function measurement the phase is constantly drifting, the measured signal is lagging.

I contacted Smaart about this as well.

Strange? Any ideas? Sync issue?

I also used an aggregate device including UFX and clicked on drift correction, same thing, still drifting.

Cheers