Perhaps this could be fixed with modding: either give boarding parties a weapon ability (you'd probably have to make a weapon with boarding ability. EVen then it might not work) or make a small weapon, 1KT, 1 damage, 1 range. Boarding ships could then be given this weapon to make sure they move towards the enemy rather than away from it.
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SE4 Code:
L GdY $ Fr- C- Sd T!+ Sf-- Tcp-- A% M>M+ MpD! RV Pw Fq+ Nd- Rp+ G-
/SE4 Code
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