Issue deleting text boxes

I checked the selection pane, and this is definitely a glich in the software. 

It started happening when I copied and pasted elements in my report. The copied elements were having issues. They would appear on other pages as well and there was no way to delete them. So if I have a text box on one page, the same text box would appear all of a sudden on another page in the exact same place.

This is not something that I am doing wrong. This is a software issue. Sometimes when I try to do formatting on those text boxes (the ones I cannot delete), Power BI shows an error message that "Something went wrong". At times, I see a message that things went wrong and Power BI needs to shut down. If I don't save my progress, it's gone.