I then loaded one in, selected the next patch in the bank and loaded the second sound in so I could easily compare the two.
When I switched between the two the sounds changed (not the visual parameters0 in way that sounded as if the filtering, phasing and distortion had been set differently.
A few more switches and they both went back to normal. A few more and it occurs again.
Note, this doesn't occur if I just load one of the sounds in
Running version 2.2 in Ableton Live 8.2