Single player - Maya - Era II (and in era III (Norseman) before being upgraded) - Noble Javelineers

Bug description:

I'm almost sure that special passive POISON does not work. Effect is properly dispalyed on unit hit by javelins on the battle map but it has no impact on movement of an unit. I tryed using special unit against many units of various cultures. However only range unit which I encountered was Hunnic Horde so I can't tell if range is reduced because they only attack an adjacent unit.

Expected behavior:

Units hit by Noble Javelineers should have properly reduced movement range (in Humankind encyclopedia "movement speed") and attack range.

I expect that in case of special abilities there should be a note of how much mentioned stats are reduced.