There are some quirks in 9.04.
I somehow got a saved amp block that had Scene 2 Controller attached to Input Gain, except it was attached like 8 times and took that many modifiers. When I cleared all 8 of them, I reloaded the saved block to check, and sure enough the “cloned” modifiers came back. So there’s an issue with modifiers within saved blocks (perhaps specific to Scene Controllers, and perhaps specific to saved AX8-Edit library blk files that came from before 9.04).
Also - hard resetting the amp seems to change under-the-hood parameters, not just visible values. At least on a block saved from a few versions ago. I’ve been hanging on to a DC30 block for several firmwares and just “soft” resetting it each upgrade. I was surprised that after a “hard” reset, even after matching all values on all pages to before the reset, that the sound was different (comparing to the saved block with all same values but before the hard reset). Got a bit brighter, in my case. I preferred the “new” sound, luckily!