No cool Complementary end sky with DH?

Hello again, I was curious how playable DH would be with Complementary on my machine, and actually, I was pretty pleased after around an hour or two of testing as on average, I could get a relatively stable 30-40 FPS with a vanilla RD of 8, Complementary under 'Very Low' (which still looks great to me btw), and a DH distance of 64 with the CPU load set to 'Minimal Impact' and graphics set to 'Low'. All is fine and dandy until... I saw that the cool aurora thingy in the end is completely missing, which is kind of a shame. Is this a bug or intentional? I'm on NeoForge 1.21.1 with Complementary r5.5.1