Every time I save my flow in Prep, I re-open and get error messages. It 'loses' the connection of the underlying data folder that is joined using a wildcard union. Here is a screen shot of one of the errors noted. The data is greyed out under connections because the folder I am trying to search in is missing.
I can go in and manually reconnect the data path to where the data is stored.
I tried to change the location of the repository to a folder on a shared drive where the underlying data is stored, but this did not work either.