Tried to attack the Drath station with the fleet having all the commanders and the game just times out, was stuck there. (unfortunately cannot replicate the bug).
Loaded the game from last save (Autosave) and all objects disappeared. Only the influence borders remained. This bug I can replicate most of the times.
To successfully load a save, have to exit from the game first.
How to reproduce. Load a save. Play 5-6 turns. Then load the game from a save/autosave.
Please see attached image.