I’m ignoring the bug report format since I don’t have the game and can’t test it myself.
At 18:25, with villagers (builders) and one mangonel selected, Hera right-clicks a tree.
This causes the mangonel to attack the tree at 18:29, damaging the villagers.
Not sure if this is a new bug with this patch; have never seen it before.
But, I note that in HD, and maybe still now, you could get a king to patrol by grouping him with soldiers who could patrol, even though the king doesn’t have the ‘patrol’ button. And you could get a siege tower to Stand Ground by grouping it with units that had that, even though it didn’t have stances itself.
So being able to get the king to patrol was nice; having a mangonel attack a tree that it can’t damage, because it was selected with villagers who can attack the tree, is bad.