I just visited a friend using a portal. Then we went to a Drop Pod only 2 minutes 39 seconds away. When I went back, the portal had been deactivated and there was no way to interact with and turn it back on. I was trapped with no starship! Luckily I was able to reload a save to get back to my starship, but if I had saved too many times, I would have been trapped for good.
I submitted a bug report about this, but I wanted to let you all know so you don’t get marooned on a planet with no starship.