If you are using Reaper to create midi’s you may have some trouble when putting them into a song in BBM(BB Manager).
In BBM 1.33 I could not put a midi from reaper straight into BBM and had to load it into another midi editor (I use the free MidiEditor) and save it in that program then it would load in. This was fixed with BBM 1.40. But I was going back and redoing some songs and I tried to load in a midi part to a song that had just been saved with reaper but BBM said it had to many events 583. I knew it didn’t have that many.
I loaded the midi into “MidiEditor” and just saved it with no modifications and presto it’s good to use in BBM again.