Hi Janus,
At the moment I think the elevation data will only be present if the Track Log is recorded in MRA Navigation. I tested this on the bus yesterday with my phone. I also recorded a route on my Tom Tom Rider 550 then imported it into a track log to create a video. That doesn’t generate elevation data in the MRA video either.
Creating a video from a MRA Route will also not yet generate elevation data but I suspect/hope that could be added at a later date.
Steve