Slitherine

Tanks cannot attack an unit on a functional bridge located in a jungle hex.
Is this intended? They can move on dirt roads through jungle.

That must be because you have the "field armour" ability applied (as seen by the sandbags at the front of the tank). This increases defense but at the cost of movement speed. I suppose a byproduct of that is they no longer have enough MP to enter jungle terrain. I'll have a look if that can be solved, but it might just be a trade-off for the up-armouring ability. You can disable it at any time anyway.

On second thought, if it just prevents them from *attacking* on that terrain that must be a bug.