Send uploaded files immoderately. Currently you have to wait downloading and then press Send button
When you drag-and-drop a file in edit message area, the file begins to upload. When the file will be uploaded, message which contains the file will not be send automatically. You have to wait for uploading and then press the Send button to make other person possibility to view or download the file.
Nathan Wells commented
This issue actually has a lot of votes on various pages - if we all vote for on all of these perhaps we can get this issue fixed:
You may want to correct the spelling to "immediately".