The loading of the HUD is now delayed to the point where all other components have finished loading.

So was it caused by the hidden Blate Loti there?
We still didn't encounter any issues (other than that) with claiming empire tiles during recent testing.

This issue has been fixed internally.
We also fixed that shrine claim notifications were raised again after loading a level.
These fixes will be included in next patch.

Nice find!
When a unit gets too near to an obstacle so it could penetrate it, we check if there is a reason to move it slightly away so it doesn't get stuck.
This method handles also any case where a unit is suddenly overlapping with a solid collider and tries to move it out to a valid location.
(This can happen for example if you place a room above units so that units get stuck in props, or simply when you lock a door while a unit is passing it and the move out method will move them out to a valid place)

However for flying or floating units over chasm this did utterly fail.
To make sure that a unit is not move to an invalid location and not sunken into ground, potential move out points were always positioned on ground height.

Well this was totally wrong for flying objects, because they aren't valid at ground height, but at the height they are flying.
In result all potential move out points were all colliding with the chasm (which is logically a collider with small height and blocks walking minions from passing it).
So the flying unit was considered as utterly stuck based on the wrong assumption it's walking on ground while it wasn't stuck at all.
So the routine to move it back to a valid location did only find collisions with chasm or the wall in every direction it could use and thus found only one way to "rescue" the unit to a valid place: which was behind the wall.

We made these move out checks based on the correct height an object is supposed to be (depending on if the unit is walking, floating or flying) which fixes the problem.

Thanks for pointing to this issue.

I want to add that rescuing minions has the highest priority of all tasks.
However my guess is your minion didn't place a bed in a lair yet, in this case he can not be rescued.
Or your minion was died and was a corpse already, which are collected with much lower priority or not at all if you don't have a crypt.
Intelligent minions are unconcious for maximal 60 seconds before they become a corpse which can not be rescued.
Beast units are never rescued and directly become a corpse when knocked out.