That's why it's good practice to copy/edit presets only in the main USER preset area - not in a Setlist. A custom setlist that you have created, like your Set List 1, is used to select and order presets from the main USER preset area - not for editing/copying them. Remember - presets in a custom setlist contain aliases to presets in the USER area. They are not themselves different presets, hence editing them and expecting them to behave like different presets is bound to be problematic.
Here's a quote from the manual:
As a general guide, use the USER PRESETS folder to create your presets, and reserve setlists for placing those presets in a specific order for your performances, rehearsals, and recording sessions.