Warning - I have updated yesterday before a gig on the new FW 2.2, to determine on stage that SOME (not all) rigs were not assigned correct anymore. I can not say whether this is related to the name of the rigs (since there is not all concerned) or whether it is a general bug of the FW. That was an honest nasty surprise!
Here in the forum many users have written that the new firmware worked perfectly, so I trusted but - in the future, I will not change the FW before a gig without without to try it through its paces.
Is the error occurred at someone else?