This is an odd one that I am having very little luck fixing or pinpointing. At specific camera angles the back face (only the back face) of 3D objects display through other 3D terrain:
I have checked and re-checked that my transparent/opaque layers are setup properly as outlined in this documentation, and I have double checked that I am not manipulating the back-face of these objects during runtime.
I do have some effects that I thought could be contributing (fog exponential and set color) but even after disabling them on the objects this issue still occurs.
The obvious thing is to just disable the back face, but in these cases I am using it as a shadow for things like tables or couches that have legs and transparent parts to the sprite where a shadow would be seen.
Any suggestions on things to look out for or check?