This other topic seems closely related to the previous problem.
The « favourite » was resolved by making sure I was connected to the server first. Being online wasn’t good enough. You have to have connections to the server.
In the new topic (link above), while being away from the server and watching « downloaded offline videos », each time the app gets back online, it looks for the server, and if it’s not reachable, the player crashes and get back playing back to the position it started playing at first.
