Sorry, but having same problem as before.
Llauwent 60,31 (1 ship in system, mine)
Message from several ships as follows
Fail to jump as this ship cost (260) plus existing fleet cost (220) exceeds the smallest fleet (-1) plus the max outnumbering allowed (400) ie 260+220>-1+400
Skereqp 67,27 (1 ship jumped into system same turn, nothing in system to start with)
Fail to jump as this ship cost (200) plus existing fleet cost (255) exceeds the smallest fleet (-1) plus the max outnumbering allowed (400) ie 200+255>-1+400
Fiobell 65,34 (empty system)
Fail to jump as this ship cost (600) plus existing fleet cost (0) exceeds the smallest fleet (-1) plus the max outnumbering allowed (400) ie 600+0>-1+400