Legion issues

If I build a transport I can load it with 1-5 legions (by that ugly black empty screen with only the slider I described elsewhere). But if I invade a planet and move the transport away from there it always takes the remaining legions with it, I get no chance to unload or upload legions.

I notice a strange legion multiplication. I got 10 legions from invasion tech and 5 from a general. I put some as defense on planets, took some to war and some remained in the pool. Some time after I have 10 legions in two transports, 5 legions stationed as garrisons, 3 in the pool and I lost 3 in war. That's 21 legions all together ... ?

Edit: I forgot 3 more legions that are in a further transport that is currently in orbit at a planet. So that makes 24 legions.

Lyssailcor, thanks for the black box tip. I'm guessing whatever number you load the transport with, that's all you're getting on it, as I lost 5 legion in battle once and discovered the transport was lost too.

Can it be that the legion number increases after each invasion? I just invaded an undefended planet with 8 legions, before the invasion the resource bar at the top told me I had 15 available legions, after the invasion that number jumped to 23 and reamined there although I moved my transports (still carrying 8 legions) away from the planet.

Yes indeed, there's a bug that's crept in in one of the last few updates (not present at release) where when you invade your number of legions is increased by the number of legions you invaded with.  So if you invaded with 4 legions and didn't lose any in the invasion, you keep those 4 and 4 more are added to your global pool.  It's been reported to the developers, so I hope someone is working on fixing it.

A new observation: one of my enemies put within one turn 3 legions on his planet. How is that possible?