Rename table name in Relationships Model when Table name already exists causes error loop

It may be a problem specific to the model that I am building using the Power BI Desktop. If I try to rename a table in the relationships model, and the table name already exists in the model, then the problem always occurs.  A dialogue window (included in original post) is presented which indicates that the table name already exists, I then try to edit the name in the rename text box, but the text box does not allow me to enter a different name. If I try to exit the dialogue window by clicking the close X button or the cancel button, nothing happens, i.e. the dialogue window just keeps reappearing, like it is in a continuous locked in loop. I guess other that provide you with my Power Bi Desktop pbix file and source data, I cannot add any more information, Thank you for responding to my previous post. :-)