While importing CSV file and changing one "String" data type field to "Decimal32" data type generates a blank white screen. After the Import button is clicked, Compass becomes locked, and one must exit the application to gain back control. "Disconnect" doesn't work. DevTools screenshot attached ("DevTools was disconnected from the page. Once page is reloaded, DevTools will automatically reconnect".

Bug also manifests with changing "String" data type to "Timestamp".

It would be useful to implement data validation using the Preview window displaying the data to update as the choices are being made by the user similar to the behavior in Compass' document editing mode for data type.

Sample file attached. First string field was used for testing, "OperationName"