@Edgard I know there has to be some amount of upstream/upload bandwidth. If you're not getting enough it could be why it's failing or never getting executed out of the queue. On the device status of the Camera I would check to make sure it's communicating with the dashboard properly and there are no weird things in the event log/history.
Also TCP/30001 has to be open to export I believe. I would probably check and see if there's any type of firewall rules in place that could affect this maybe see what you're getting from the Camera's IP on some wirehark pcaps.
Do you have anti-virus on your local PC that could be hanging up any of these processes? I've seen that happen before as well.
Tanner Johnson, ITILv4, ECMS1