Transforming strips into locked tracks meant that they were not unlocked properly (i.e. they stayed as temporary "meta" strips). This is now taken into account as part of the step which checks if there's any space for them in those tracks.
Transforming strips into locked tracks meant that they were not unlocked properly (i.e. they stayed as temporary "meta" strips). This is now taken into account as part of the step which checks if there's any space for them in those tracks.