Sergey Sharybin
d03e768761
It was an issue with early object update check which was screwing up for second scene because of first one reset ID recalc flags. From the comment in the code about this: We need to check all visible scenes, otherwise resetting OB_ID changed flag will only work fine for first scene of multiple visible and all the rest will skip update. This could also lead to wrong behavior scene update handlers because of missing ID datablock changed flags. This is a bit of a bummer to allocate list here, but likely it wouldn't become too much bad because it only happens when objects were actually changed.