Unity2017.4.LTS - Lightmaps are incompatible between Windows/MACOS and iOS/Android

Hi all,

it seems an old lightmaps issue has been introduced again when generating lightmaps since Unity 2017.3.X.

I am now working with LTS version 2017.4 and we are experiencing this problem: the lightmap are not compatible between platforms. If I generate the lightmap in MACOS then it works for MAC and iOS, but not for Windows/Android and viceversa.

I was expecting to have this fixed in LTS version as... it is a long term one. But it was not.

This is a visual sample of what it is happening: I did this lightmap in Unity 2017.4.LTS Windows 64bit version and looks nice like this (and the same for Android):



This is the same lightmap opened in Unity2017.4.LTS MACOS 64bit version, and the same in iOS build:



Is anyone aware of this problem in Unity? Because this is happening (I think) since Unity2017.3.1, not sure in 2017.3.0.

Thanks!