color not applied immediately in frozen area

Steps to Reproduce

http://10.1.3.45:8089/keikai-demo/excel_like
1. go to Liquidity sheet
2.  go to a frozen cell like J2 (Q1) use toolbar button to change background color -> no effect
3. switch to another sheet, switch back -> color is applied

Current Result

colors are not applied immediately. only when we switch sheet and switch back, the color is applied

Expected Result

color should change immediately

Debug Information

Workaround