On Thu, 22 Apr 2021 11:55:26 -0700 (PDT), Ivan Denisovich wrote:
Due to problems I had to reset File History. As a result a new sub-folder
was created within the File History folder. The original sub-folder
still contains data from prior backups, but it appears that the program
can only access the new one. Is there some way to be able to access the
older backups as well, should it be necessary to restore from them?
Thanks for all guidance.

What was the error message?
Have you tried accessing it from the Command Prompt?