Since the other bug report indicates this issue was fixed, I will double-check that the latest version has been installed on the FireTV later today, and see if the bug still exists, then I will update here.
Mega_Spud, yes, that does look like a similar issue, although the error message was different than the one I received. I re-checked the version number, and it is 0.15.10. Changed above. Thanks.
It appears the FireTV was stuck on a prior version, and after updating this issue has gone away. Thank you for your help.