If while using Power BI Desktop you rename a page tab and whilst doing so use the delete key on your keyboard, Power BI will bring up a prompt asking whether you wish to delete the whole page.
This is a frustrating bug as the delete key is a useful key when altering text.
Bug is still present in release Version: 2.82.5858.1161 64-bit (June 2020)
Bug first started occuring earlier this year.
The issue had been reported.