Strange red cast on skylight?

Hello.

I’m doing a very quick and dirty interior lighting study for a skylighted structure.
After adding a rendering environment map, the rendering skylight casts a red tint on all materials, incl. default white.
The cast remains even after deselecting the emap…
Not a critical issue, but it seems strange. Any idea what may be causing this, or am I missing something?

shed.3dm (2.2 MB)

what version of rhino are you using? I believe this has been addressed with a service release.

Latest 5.3.2
So is this a previously known issue?

I’ve seen it on previous versions, but the current version works here…

does it do it on all models or just one?

All models same. Rebooting doesn’t help either…

@marlin any ideas?