(Posted a question on the AnswerHub, and I guess editing it too quickly to add more details caused to get stuck in limbo for several days - link)
Been getting very odd dark square shadows on moveable object in a persistent level, with lighting (stationary directional + skylight) from a sub-level.
The shadows are 3d cubes - if you align a mesh right, it can z-fight with it (as seen on the right 3 meshes).
Only happens with the lighting from the sub-level that envelopes the persistent meshes (other sub-levels with similar lighting setups are fine) - I’m assuming this is cubemaps or some other 3d lighting infromation, but I just don’t know enough to figure out what it is and why it would look so wrong…
I’m using 4.24, and tried upgrading to 4.27 didn’t help.
Any help at all is appreciated.