We are on 18.3 and were hoping that the drag and drop would function. I see the upload and download function but I thought the bidirectional drag and drop feature was fixed. We can only upload via this method not drag and drop the needed reports from server to local PC. Is there some other configuration that needs to be set for this? Bidirectional is set in the HTML5 settings.
The HTML5 client currently supports only file upload and download. For convenience purposes, it also supports drag-and-drop-to-upload-file, but as you already noted it is unidirectional. Proper drag and drop (including of different data types, like that on the windows or macOS clients) is not supported yet on the HTML5 client in either directions. You can add it, along with an example of the use case, to the list of suggestions in here: https://forum.parallels.com/forums/parallels-remote-application-server-feature-suggestions.767/