Having this issue too. 3rd time in 3 days... just got the HX & doing some serious preset building and it's very disheartening to loose all my progress. Firmware 2.60. Using the Mac editor to edit a preset and the unit bricks all of a sudden. Afterwards (disconnected from USB) the unit gets through boot but bricks again on first interaction, clearing all presets 'fixes' the unit.
==EDIT==
Just realised I can export the presets without double click/ opening them in the editor sidebar! Yass, was able to get them all off the unit, reset, and load them back on!
