Mimolive Video/sound desynchronisation

still sound / video synchronization problems.
Config : atem 4K, sonnet with blackmagick decklink. the sound goes through the Atem and arrives in Mimo via SDI.
The solution found is to disconnect the audio at each roundtable and to reconnect.
in fact, the sound becomes desynchronized as time goes by. and doing this the synchronization returns

If you’re using Decklink 11.6, please downgrade to 11.5.1

What version of mimoLive and what version of macOS are you using?

Are you using any kind of video reference black burst? If not, could be your issue. When using multiple devices sending video reference to the devices usually keeps things synced. It would make sense upon disconnecting/connecting you would lock at first then lose sync over time.