Tables in the join can no longer be deleted in QuickViewer

What causes this issue?

You tried to delete a table in a join.

System Response

Join tables may no longer be deleted in the QuickViewer after they have
already appeared once in the field selection.

How to fix this error?

Where necessary, create a new join without the table.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.