Several units in vanilla have messed up selection rings. Most noticably the tier 1 vehicle fabber, and the tier 2 missile bot have rings that are way too large. There may be others. Looking at the files this seems to be because the definition is missing from their json and fall back to a default which is not right for them. Titans correctly overrides these values with the proper ones. In older versions of vanilla this was not an issue. But it is not and has been for a very long time. Surprised to see it not fixed, given how trivial it is. The Astraeus "Special Move" is broken in both. And has been for a very long time. It used to be that using the special move would switch layers from air to orbital, and stay there. Say you wanted to protect it from orbital fighters, you could use the special move and still move it around in the air layer. Now using the move command always sends it back to orbit. Even if it is already in the air, and you send it to pickup a unit that is only a few dozen meters away, it will go all the way back to orbit first. Again I'm baffled why this has remained broken for so long.