Unable to communicate with SYNC HD (24.3)

[Frank Kruse]

Hi there,

since the 24.3 update the daily "unable to communicate with the SYNC HD"-errors are back. They were down to once every 2-3 weeks with 23.12 but now it happens every moring and can only be fixed by multiple re-boots of the computer.
Digitest says all is fine. SYNC HD is v2.2.1

Frank

[Frank Kruse]

Quite often I now get an initial "frame rate mismatch between incoming reference and video"-error followed by a -22005 error or something like that and then PT won't play. This happens even when the SYNC HD is detected on launch.
Video is DNxHD36 1080p 24fps and reference is a matching trilevel video ref sent to both AJA and SYNC HD

The error doesn't go away after re-starting PT. It goes away by re-starting the mac (sometimes a couple of times). Once it works it will work for the rest of the day.

This did not happen at all before 24.3.

[Frank Kruse]

A friend is running an identical hardware setup as me and is getting the exact same errors randomly but not rarely.

[Nico Berthold]

Hi Frank,

not really helpful for your situation, but FYI:
I haven't seen that error in years with my config:

Mac Studio
Blackmagic Ultrastudio HD
Sync HD, both genlocked by a
Rosendahl Nanoclock HD outputting Wordclock and Video Ref

[Frank Kruse]

Thanks! When you say "in years", are you on PT24.3 with the 24.3 HD driver?

[Nico Berthold]

Yes, 24.3, upgrade couple of days ago.