I think I've found the origin of a bug that is making my life miserable for a while with my Helix Floor and HX Edit. Surprisingly it's related to the send/return blocs in general!   I uploaded the following 2 presets: Preset 1: Vox15_ECM V2 and Preset 2: Rythm_ECM V3.   If you select the Preset 1 and add any bloc on the Vax Mags line except for a send/return bloc, it will work fine. But if you add a send/return bloc, save the preset and then select Preset 2. Then fr