Thanks All.

As mentioned the file(s) in question load just fine in RB 2014 (I skipped the 2015 upgrade). They also load and play just fine in ever other DAW that I have access to.

I already tried the trick of pulling it into Reaper (where it plays fine) and saving it as a new MIDI file, same crash on loading it into RB 2016.

I'll install the build 3 update for RB 2016 next time I have that machine on and see it that makes any difference.

If that still crashes then I'll post the file, but I'll also dissect the file a track at a time to see if I can isolate the track that causes RB 2016 to choke.

Burt