Reproduction of the UI freeze bug on Digitone Keys:
- Switch on the Digitize Keys.
- Verify the firmware version. It should be E (left lower corner of display at startup) 1.32A (right lower corner of display at startup).
- Perform a factory reset. (may be skipped but then bug reproduction is not guaranteed)
- Verify that ‘Presets’ project is loaded. (a must!)
- Select pattern A-6.
- Select track 3.
- Put the sequencer in grid mode.
- Press and hold trig key [1].
- Press both [UP] and [RIGHT] keys while holding trig key [1]. This should freeze the UI. If not repeat pressing both [UP] and [RIGHT] keys while still holding trig key [1].
- Power cycle (switch off and on again) your device to get it working again. Nothing is erased normally.
Hope this information is of any use. Bug has already been reported to Elektron.