Hello, I am currently playing on 1.19.2 Forge 43.4.0 and I am playing on superflat creative world (for easier building). Whenever I summon a part of a building and then try to edit that part I receive the message "Could not find a part to edit in this chunk!". I am unsure if this is an incompatability with superflat worlds (since cities don't seem to spawn) or if I truly cannot edit a created/summon part.
Photo of message:

Thank you for your time.

Edit: I am editing this comment because I would like to note I also have Xaero's Minimap and Worldmap mods installed. After searching for anything that could help I noticed this issue where the solution was to fly away and then come back so the chunks regenerate. When I tried this it did not help so I assume that maybe the map mods are to blame (but that might not be the case as I'm not too sure how they work anyway so I might be wrong)

Edit 2: After still experiencing this on a non-superflat world I have decided I'll just make every city one floor only with no cellars so everything is easier to get done instead of trying to find a way to edit created city parts.