Right, but they weren't present in randomly generated maps. I think a good addition here is to allow wormholes as well as non-colonizable objects to be enabled or disabled under map options for randomly generated maps.
xserpint
Found the save file and its from version 1042. https://drive.google.com/file/d/1_DustcwNLtncKJlvCqNHau2b6IJSquwq/view?usp=drive_link I saved it as I as sieging the planet and you can see the capital ships facing the planet while the starbase is sitting next to them.
The latest patch added wormholes, but didn't allow them to be turned off in pre-game settings.
I had a save where it was happening, but had to restart the game and now it says the save isn't compatible.
I've been noticing in the latest patch where a all capital ships will ignore a starbase to go bomb an invulnerable planet. It seems the AI does not recognize it can't hurt the planet until the starbase(s) are neutralized. I've watched as they will literally fly right by a starbase that is shooting at them to do this. Also, all ship AI seems to not prioritize planetary defenses or enemy ships and instead will attack ship builders, research centers and other non-threatening things first.