Harmony - Troop Symmetry

I came across a bug (and it's not the first time): when a mechanical creature dies and its "corpse" is resurrected by gremlins repairing it, the creature itself cannot be seen – it is displayed on the action bar, can perform various actions (attack, etc.), but it is impossible to attack it or cast spells on it, just as it is impossible to move onto the cell it occupies, which appears to be empty (attacking was only possible with area-of-effect attacks – a spell or an army attack). I noticed this before with golems, and recently I made a mod that turns titans into constructs, and I saw this bug again, but this time on a titan – what is the cause, and can this be fixed?