Hi Marnie,
In this case, for a quick workaround, please try with this browser-side fix to narrow down the situation:
- Open the list in an InPrivate/Incognito window or test another browser.
- Clear cached site data for: sharepoint.com, office.com, microsoft365.com
- Temporarily remove any custom JSON formatting from that column and test again.
In the meantime, I will try to reproduce the behavior on my testing environment to see if I can gather more insights about this unexpected behavior.
Should you have any further questions or need additional assistance, please feel free to share them in the comment below. I'm very happy to help.
Thank you again for your patience and understanding. Hope to hear from you soon.
Note: Please follow the steps in the documentation to enable e-mail notifications if you want to receive the related email notification for this thread.