A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Root Cause :
This is called stale display / delayed screen repaint issue.
Solution :
please check the below options and clear it.
Press:
Ctrl + Alt + F9
This forces Excel to recalc and repaint every formula.
If this fixes it temporarily → it’s a repaint bug.
If Excel is in Manual mode, formulas update but the UI may lag.
Check: Formulas → Calculation Options → Automatic.
Manual mode is a common cause of “old value still showing.”
Merged cells frequently cause redraw bugs in scroll-heavy sheets.
Complex Conditional Formatting rules can delay repainting.
Thanks.