If monster has en effect that activates during the End Phase it doesn't go through. When I select End Phase it immediately goes to my opponents turn. Stardust Dragon's eff doesn't work, Aesir monsters' effs don't work either.

Am I doing something wrong or is not working for anyone else?
if you summoned your stardust using starlight road, you can´t special summon stardust again when you use the negating effect because it wasn´t synchro summon properly. 

Starlight Road: Special Summoning “Stardust Dragon” with “Starlight Road” is not a Synchro Summon. If that “Stardust Dragon” is later sent to the Graveyard, it cannot be Special Summoned by its own effect or “Call of the Haunted.”
if not, try sending a replay with this bug and next time use the bugs section. Not "support and feedback" section
My Score, Name Sven
Alright thanks