First, I don't think this is a bug. I am having a weird signal logic problem. It is in Vanilla, on the starting planet. I decided to take a (large?) wreckage as a temporary base...that keeps getting expanded and updated instead of replaced. If I place a teleporter on the base, it's fine and works. If I try to set up a motion sensor and link them with SIMPLE signal logic, the motion sensor won't affect the teleporter. HOWEVER, if I take over an existing base, or build a tiny base just to use the teleport, things work fine. So, the signals work. I'm doing it right, but on the wreckage it just isn't having it. Like I said, I don't think it's a bug, as I can set the system up in other places. Just wondering if anyone has a plausible explanation why it won't work on my wreckage base. (Not game breaking. Just causing me to want to get to the bottom of this.) CHEERS!