Custom background doesn't work on reflections#3058

I was planning some special DND campaign on Project Moon universe, so I was experimenting with the different features of Tabletop simulator and making my custom assets to motivate my players.

And when I tryed to put a custom background I noticed something, the skybox of the reflections is not changing.

If I set one of the backgrounds that already are in the game the reflections change, but if I use a custom background reflections still show the last non-custom background.