Steps to reproduce:
1. Select to upload presentation video (filesize >= 1.57GB);
2. Select to upload presenter video (filesize >= 3.12GB);
3. Select to upload audio (filesize >= 540MB);
4. Select the "different resolutions" workflow;
5. Press upload.
After sometime the "Upload File" window starts counting negative percentage.
It should count positive percentage always.
Workaround (if any):