Conclusion about the misbehaving RT and 2/4 - 4/4 changes within a song so far from Noel & mepoorself: the bug is not a bug as long as you do not set the RT to halftime as i did. Loaded the affected MGU with another style with half the BPM count, and the RT set to 'normal', eureka, it worked. Noel reported these scientific analistic results to PG, hope there will be more added fixes to enjoy when the man (BIAB 2019?) comes around ....... F