Playback bug, Trombone

As you can see in the linked video, on playback, suddently trombone 1 and 2 dont play and then come back
To fix this i have to untick and then tick the "Playback?" option on the right pannel (its in the screenshot my musescore is in portuguese), even tho it was already ticked before.

https://streamable.com/kuhovn