Quoting ,

quoting post

i have a fleet with a commander ship, in this example 26/26 logistic, then the fleet move to a starbase or a planet, so when i eject ship (only these was at the starbase/planet) the fleet will be split, and then will be separated, so i have to merge again. Fix this?

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No need to fix do not move them onto a planet or starbase there is absolutely no need for it. 

I was also under the impression that you could choose to launch all that were there as a fleet or individually by highlighting them. Thought of this after I posted. 

This is the Gal Civ 4 forum and if you have your fleet on a planet starbase and highlight all the ships using the Shift key they will exit as a fleet, same with GC3. I tested and it works. 

Since it works as designed it is not a bug.

I was a little abrupt with your Original post.

However with post after post of this is a bug when it is the poster failing to learn the mechanics, then instead of asking is this a bug or am I missing something? it gets tiring.

Now please go try the highlight "Shift" method and see if it works for you.