custom exr (lightmap) turns blue upon import into Unity

Hey there,

i'm trying to import my custom made lightmaps (rendered in 3ds max, mental ray) into Unity using the EXR format. Im using the exr format as i want the same lightmap effect as Beast lightmaps, e.g. lighting up textures (incl overbright areas) instead of just multiplying/darkening (which is what the standard legacy lightmapped shader does when using jpg, bmp, tga etc).

My problem however is that the imported exr files turn blueish in Unity. Would anybody know the cause of this?

Edit: Hmm it probably has something to do with the exr settings. When i overwrite the beast lightmap with my own lightmap it turns blue. But when i open the beast lightmap in Photoshop and add my own lightmap on top and then hit save, the lightmap in Unity doesnt become blue. Would anyone know what settings i would need, here's the dialog box shown in 3ds max: