White screen after changing input file after loading in desktop

[bensommer]

• Load a bogus input file - e.g. one without column headers
• Progress through the validation after DL fetches field map settings, and watch DL desktop app report the proble
• Go "Back"
• Fix the underlying file to add the proper column header
• Click Next
• See a white screen

[ndickerson]

I am unable to reproduce this issue. When you are on Choose Entity and select next, it should bring you to the Map Columns page where it gets the latest field map settings. Once it gathers the latest field map settings, as long as there is a header in the file, it should show you the Map Columns list. If you provide only a single row in the file, then it should show no rows there. If you go back to Choose Entity, add a header row, then forward again to Map Columns, it should show the loading dots as it's gathering the latest field map settings again.

The App will auto-update to the latest version that's releasing later today. It would be interesting to know if this still happens with the latest version.

[ndickerson]

I can reproduce the issue now. Going back and changing the type of entity will result in the blank Map Columns screen.