I was adding more chords in the tuner when I noticed that suddenly the chords repeat really quickly, i.e. it's nearly impossible to type just one letter because it starts repeating almost instantly.
The tuner interface where I can set the repeat rate is also borked because (a) the repeat rate was suddenly reset to a very low number (100ms) and (b) I can't really click on plus/minus to increase/decrease the key repeat delay. Sometimes it works, sometimes it doesn't, and it's also not predictable what happens when I drag the slider around. My assumption is that there's something wrong in the backend and then also on configuration file creation such that the repeat rate is always set to the minimum, i.e. my change doesn't get picked up.
Whatever I do, I can't seem to increase this key repeat delay, such that I end up with the device being unusable. Luckily I have the old configuration files and they keep on working. I'm on the beta firmware.