Shadows arn't on and this is the same blueprint.Woah thats a new one, i've not seen that before!
As you are probably aware, there are still known issues with the lighting, so you can expect that this will get fixed at somepoint, but it is a pretty bad version of it.
I know you said it doesnt happen on windows, but did you try the same blueprint? Also, shadows arn't on there are they?
it is mac only, but only on the mac i have at home, i don't have others, and i neither use anitaliasing.Is this confirmed to be a 'mac-only' issue?
I have seen a few problems on low-angle views, but this is not part of the things I know.
Maybe check settings on antialiasing, may change with enabling, disabling it.
- Andy