Ahh, yes. That is a new feature ^^
Second time I can't leave Talos with rover. averyraine already reported this problem. https://ctxt.io/2/AAB4wYN5Eg
I bought the game on Steam for about $3.14 in my region. Three days was enough to see the new content. Initially, I was traveling through all the old areas, but it was too time-consuming, and eventually Strabo ran out of power, so I just stuck with Laurion later on. And I never used the combined action in Santorini, which offered to grab resources/a suit and return to the rover, since usually the first thing you do is call a drill/tram. Anyway, thanks for the update!