Render help!

Hi there! I’m new to UE4. I created explosion in houdini and set up niagara system with it. So how do I render it now? It plays in the viewport in UE4 but as soon as I press render a video in a level sequencer animation stops.

You can try to trigger the effect manually inside of sequencer. Just drag the system from the level into sequencer, add a niagara component, then fx system toggle track. Then trigger via activate or trigger.
That should play the effect at the desired time.
It might also be the way you’ve setup the explosion-time. Would need more information to see what’s going on exactly.