PLEASE fix Retail Art Gallery Bug

Since 3 updates ago retail Art Gallery is messed up. I paint a painting and it is worth 1000.00. I set it for sale at 50% for 1500.00. If I leave Gallery and come back it is now valued at 229.00. I have to set not for sale. Put it in my Inventory then back on wall and set for sale again for it to be worth 1000.00 again. Have to do this EVERYTIME I come back to gallery. I havn;t been able to play my Artist game that I have over 100 hours into since 2 or 3 updates ago