Transmit doesn't launch at startup. You need to open and close the prefs panel to activate it.

I've had  the same problem for some time as well, well, not so well.

This bug is definitely still present. It happens to me on windows 11 pro with 5090. 

Every time Premiere opens my second monitor doesnt work (Mac Studio monitors) 

I have to manually go into playback and uncheck Adobe Monitor 2 or enable Mercury button to reset it. 

It then appears and works after about 10 seconds. Having to do this every launch. Was an original post saying it was a known bug but post and reply are not on the new Adobe web pages. 

Mac M1 Max Studio / Sequoia 15.7.3 / Premiere 26.0.1

Hi ​@maximeb24899079,

Thank you for reporting an issue. Content created between November 17 and launch day [Jan 27] will be added soon and is in the process of being migrated. A bug for this problem has already been filed and the thread will updated as more known.

Another workaround for this is to open the project with the Color or Effects workspace already selected or to switch to the Color or Effects workspace. If not in these workspaces, opening the Lumetri Color panel can also resume Transmit playback.

Sorry for the frustration,

Dani