Thank you for reporting this bug Would you please also share the affected save file here? If you haven’t done this before, here’s a short guide on how to do it: How to Send User Files to The inZOI Team (Updated)
If you want to send it so it’s only available to the inZOI team, please do the steps in option 3 of the thread I linked above. Here’s the direct quote about it:
Yet your large painting sells for double the normal price (that would be absolute best price) I’ve ever seen.
If anything the second price looks normal, far more than the first.
I’ve done painting since version 0.1.0 and I’ve never ever seen a painting worth 7k or over.