@farrarjonc1 thank you and hope your year is also going well.
Two additional hints. Although unlikely in this case it is possible that you could have a problem with your hard drive or the handling of special characters. And lately I had the case where a workflow that was left open although previously saved disappeared. So backup and versioning is a thing. It was a windows server that would auto shut down the session and the left-open workflow did not survive.
Additional hints can be found here:
Especially the
https://docs.knime.com/latest/analytics_platform_file_handling_guide/index.html
is very useful