I know this is a UE4 answerhub but I’m not sure how else to get an answer from epic, Please help! 
I’m trying to release a OSX version of my game Homesick, the windows version is working great, but I get a lightmap UV problem with the OSX build. What seems to be happening is the OSX version uses UV coordinate set 0 for the lightmaps even when it is set to use UV coordinate set 1, causing the lightmaps to be applied quite wrong. Is there any known fix for this? Am I doing something wrong in doing a build for OSX? I’ve tried this build on a couple different apple computers with the same result. Please help, even if it’s just to know that it’s unfixable that would be helpful! You can email me if you like: barrett@luckypause.com Thank you!
Windows:
OSX:
