Welcome Aboard Bart, Unfortunately, I'm not one of the more Technical and Midi Savy members of this group. But, I just wanted to say "Hey!" I've also experienced problems with looping Midi tracks within FL. However, I've learned a few work arounds. One of which, I use quite often: Create your track as normal, then make a second blank sequence following the portion with the Midi part in it. That way you have some dead air behind the end of your MIdi passage. Then I fly the whole song over in Song Mode, exporting the song as a wav file to Acid, SoundForge or Cool Edit. Then I just chop off the Dead Air at the end of the Midi Passage, Loop and Time Stretch a bit until it sounds proper. It's a little time consuming and the results aren't always manageable, because I have to work out the new time signature. But, most times I get the Loop to work within the song I'm working on. Hope You have Luck.