Unplayable Main City / iPad 8th Gen

Longtime player, dealt with multiple “bad updates” but I’m officially unable to play my main city due to pink pixel dots when I try to move anything. All my other cities are playable, however the main city, I cannot breakthrough. Before when this would happen, (freezing, black screens) I was able to restart and the problem went away, now it’s been multiple days and nothing has worked. Tried offloading, everything is up to date, zooming in, I’ve tried it all... I’m concerned because my main city will be destroyed once the grace period for redesigning services ends.. I can see multiple issues on this topic but how can we get some help??? This may be the end of gameplay if they cannot get this problem fixed. I would do anything if I couldn’t delete things. Lol send help!!!