Hi everyone,

I just bought a second hand XM, and while I love a lot of things about it, there are some irritating aspects that I would qualify as bugs that I hope you can help me with.
I update the firmware to 1.41, and reset it to factory. It is not connected via Midi (or anything else, only power plug is connected at the back of the synth).

1. Sometimes, when I use the sequencer to create a drum pattern and I want to remove a note, pressing on an already-lit button on the 16-button board (meaning the note has been assigned) doesn't "unlit" the button, and doesn't remove the note. I have to go through the manual dials to remove the note. Interestingly, it doesn't transfer when I swap to other parts, i.e. I can correctly remove notes by pressing an already lit button again. Going back to the first, buggy one, and the problem is still there. Resetting the device makes the problem go away, at least for some time until it comes back. Head-scratching.

2. The screen will sometimes keep showing the step sequencer even after existing the step sequencer (e.g. pressing the "Parts" button)

Has anyone encountered those bugs before?
If so, did you find any fix?

Thanks in advance for any help, much appreciated! The synth is great aside from these issues with the sequencer, so I hope I can make it work