# Niagara loop duration not affecting my Niagara effect? **URL:** \ **Category:** FX\ **Tags:** unreal-engine, question\ **Created:** [July 23, 2026, 7:20am UTC](https://forums.unrealengine.com/t/niagara-loop-duration-not-affecting-my-niagara-effect/2737743 "2026-07-23T07:20:43Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![brs-sebascova](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/brs-sebascova/32/1052483_2.png) [@brs-sebascova](https://forums.unrealengine.com/u/brs-sebascova)\ **Post date:** [July 23, 2026, 3:32pm UTC](https://forums.unrealengine.com/t/niagara-loop-duration-not-affecting-my-niagara-effect/2737743/2 "2026-07-23T15:32:30Z")
Hello there @martyysmart ! From your description, it sounds like there’s a conflict between parameters in your Niagara system, most likely Loop Behavior, Loop Duration, and Life Cycle. On paper, the system should look like this: - Loop Behavior: Infinite - Loop Duration: Fixed, and set to 4.0 - Life Cycle: either set to “System” or “Self”, depending on your setup Also, make sure that “Recalculate Duration Each Loop” in System State is disabled, or Niagara will re-arrange your effect after each cycle. Now, checking across the community, even with these settings, sometimes Niagara just refuses to properly loop forever. The thread below proposes a different approach, please give it a look: > [@Seamlessly Looping a Niagara system](https://forums.unrealengine.com/t/seamlessly-looping-a-niagara-system/494951/4): > > I recognize this is an old thread, but I figured out how to seamlessly loop Niagara systems (for the most part.) In your system, you need to go to your main Niagara Overview Node (the blue one), select it, change the Loop Duration to the length you want your loop to be (for this example, we’ll do 30-seconds), and set it to “Once” instead of infinite. Then go into each of your individual emitters’ properties panel (the orange boxes), check the “Determinism” checkbox, and change the random seed fo… --- _[View the full topic](https://forums.unrealengine.com/t/niagara-loop-duration-not-affecting-my-niagara-effect/2737743)._