A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data
Could you share the steps to reproduce your issue?
It seems bug. I'd suggest you raise it to Microsoft directly.
Please contact your admin/IT department create a support ticket via Microsoft 365 Admin Center> Support> New service request. Support team there will have the correct channel and resources to help you investigate more and find what exactly the reason has caused this situation.
Get support - Microsoft 365 admin | Microsoft Learn
About how to find the admin in your organization, you can refer to How do I find my Office 365 admin