After the 5th post on this:
Firmware release notes:
NOTE: THIS IS A MAJOR FIRMWARE UPDATE, PARTICULARLY IN REGARDS TO AMPLIFIER MODELING. THIS FIRMWARE MAY, AND LIKELY WILL, CHANGE THE SOUND OF EXISTING PRESETS. YOU SHOULD AUDITION ALL YOUR PRESETS AFTER INSTALLATION AND CHECK FOR PROPER OPERATION AND TONE. AN AMP MODEL CAN BE RESET BY TEMPORARILY CHANGING THE AMP TYPE AND THEN CHANGING BACK TO THE DESIRED TYPE. THIS WILL LOAD THE MODEL WITH DEFAULT PARAMETERS.
I don't know how it can be more clear.
I'm not knocking on you, but you HAVE TO expect this every time there's a FW release. Sure, it's a pain to redo your presets, but this is the price of upgrading. You do have the option to go back to 9.02 until (or if) you have the inclination to do that much retweak.
R