I'm trying out the latest beta from your download page (AppImage) and I can't see or set loops on the Song Editor. Frankly, I can't see how to write a song without looping so this is pretty much a deal breaker for me unless I find a work-around.

I will add a screenshot next showing that a lot of what used to be UI is now just black. Not sure if that's a feature or a bug for 1.2 or how I feel about it if it is, but that's not a problem - while looping is a must-have.

If I enable loops, even though it doesn't show me the marker, it will still loop the first 16 beats (4 bars?), which I assume is just the default starting value for the marker. Trying to change the marker's position, even though it's invisible, like I would on the latest stable release from Debian, does nothing to change this behavior either (ie. doesn't "move" the invisible marker).