Something Went Wrong! Unable to Group By Field in SharePoint List

Josh_740  Hope you could look at this: https://support.microsoft.com/en-us/office/use-grouping-to-modify-a-sharepoint-view-18548b63-a869-4fcf-89b1-ba3d04784df7 , it says:

Note:  When grouping by Managed Metadata fields, using more than one Managed Metadata field in the grouping is likely to have a performance impact on pages loads for the library view where grouping is enabled. (For example: Column 1 and Column 2 are both Managed Metadata fields. You first group by Column 1, then by Column 2. This is likely to impact performance of the page).