- Even though it's not an unprotected garrison, enemy units can target abilities on units inside them:
- Even though it's not an unprotected garrison, hwachas' area damage targets units inside them, instead of the flag itself: (unrelated, but hwachas also seem to only target bottom-left tile of multi-tile buildings, similar to the petardier issue posted by phoenixffyrnig, so in this example, I targeted the top wall)
- Construct Road, Construct Stone Road and Mend Road abilities to do nothing when targetting a great flag that has a unit inside it. Maybe it's using the great flag when checking if it's able to be cast and them casting it on the unit, instead of on the flag?
Edit 2: Great Flag, not Warbanner, sorry.