OK, OK...
What happened to the 1.2.1 is the result of a small misunderstanding between different people here at Arturia. We apologize for this. The 1.2.1 will be available again tomorrow morning. There will be a new version, named 1.2.5 available in around 2 weeks. It will include 2 more fixes that were too late for the 1.2.1:
1- Add the possibility to load a preset for a slot within a MULTI preset. This "slot" preset can be loaded either manually, or as a consequence of a MIDI program change targeted at the slot "control" channel (the global channel being the one to use for other program changes, ie SINGLE or full MULTI).
2- fix a possible audio crash when adding connections to a preset (SINGLE or MULTI) when notes have been played before. Until now the work around was to press the PANIC switch regularly while editing.
Another feature should be added. Using Origin Connection you'll be able to upload a log file that contains different traces updated when the DSPs crash. These logs will help us to better understand what went wrong inside the machine, and therefore should enable us to provide a more and more reliable OS in the future.