There is a small bug that has existed in all versions so far. It's easy to avoid, that's probably why nobody reported it.
Steps:
1. Go to "Show Mode"
2. Create a new show and add a new track
3. Choose an Audío file and add it
4. Play the show and press "Pause"
5. Press "Play" again
Now the show is asynchronous. This gets particularly bad if you jump to another point in the show after pressing "Pause" and then press "Play" again.
You can avoid this by not using the "Pause" button, but the "Stop" button. Both buttons basically do the same thing.
I'm only reporting this now because I tested QLC+ on Linux and had the same problem there as on Windows.
So as far as I can tell, this affects all versions of QLC+ on any operating system!
This is certainly not the biggest problem in QLC+, but I just wanted to point it out!
Best regards
Q Light Controller+
Official forums of the QLC+ project