Hi Ianlan,
Thanks for posting in the community.
According to your description, I have tested on my side, it works well, and I can’t reproduce the same situation. To troubleshoot the issue further, I would like to collect more information.
- Since the conditional format works well when you change the value and the issue only happens when you refresh the page, do your colleagues view the same situation after you edit the value?
- Does the issue exist in a specific list or also in other lists?
If your colleagues can view the same situation (refresh the page and the conditional format displays the wrong color) and the issue exists in other lists, I would like to suggest you contact your admin/IT department and ask them to access Microsoft 365 Admin Center> Health, check whether there are any related service incidents in your tenant. If so, please wait for the repair. If not, please post back and let me know.
Regards,
George