Deleted him from Dunusi (since Nasinammu is probably where he is supposed to be, sharing a surname with another bandit), and created a new (very similar) outlaw archer to put in the same spot instead.
I initially only wanted to fix the one mortar on the TEM Princess Morgiah so that report could be closed, but I saw that this issue was true for like half of all the mortars placed in TR, and pretty evenly spread through all maps. And the apprentice mortar uses the same model, so it happened with those too.
So I've gone through all the Apprentice and Journeyman Mortars placed in Mainland as of 2023-09-11 and sunk those that were balancing on their bottom spike. As a treat, a few were bled in so much that you couldn't see their bottom rim, so I've raised those.