Hello everyone,
I have so far only worked with regular instances. Within my project I have quite a few parts that would be good candidates for a mirrored instance. So far however I was not successful to create this type of instance. Creating a linked duplicate and then setting the scale to -1 works inside blender but has the object invisible after export. Creating a regular instance via linked duplicates and putting a mirror modifier on top is very suboptimal if objects need to be animated individually and also do not work after export. This seems to be caused by the mirror modifier, LOD culling occurs as if I had made two regular copys of the mesh.
Maybe someone has created mirrored instances before and can help me?