Thank you so much for your help, EbonyA.
The hyperlink does not work after I removed the cache folder (there are no cookies to delete in the library). I uninstalled the program, removing related files in the library, and reinstalled the software, still the same. The hyperlink only works when I start a new return, but not on the file that I have been working on. I have MacBook Retina 2017, Big Sur version 11.2.3.
