Figured I should answer this here…
What happened is that you switched the samples in slots 1-6 to different samples. The sample slots are global per project so any part that you have assigned to play the sample in say slot 1 will play whatever sample you have currently loaded in slot 1. When you are working with another part load the samples you want to use in higher slots and point the flex or static machine at those slots. Don’t change the samples in slots other parts are using…
Another thing is that in each bank there are 4 parts only accessible for that specific bank. When you switched to bank2 you were already using a new part, bank2’s part one, so no need to use part2 yet in bank 2.
If you were to stay in bank1, switch to an empty pattern, and assign part2, then you’d be in a great spot to begin to use bank1’s part2.