Particles Start Slow in Master Sequence Capture

When doing a video capture of a master sequence, particles startup and show up very slowly, around 4-5 seconds late. Normally, in any other case, the emitter has already spawned a lot of particles and they are all visible by the time the sequence starts. P_Steam_Lit in StarterContent is an example of the types of particles that are showing this behavior.

The particle emitter has a long warmup time set, the capture has a long warmup time set, and the particles are placed in the level rather than spawned. This problem does not happen when capturing the individual sequence pieces one at a time solo, and it only happens when capturing the master sequence made up of those individual sequences.

Hi JohnRoger,

I’m trying to reproduce this and can’t seem to get it to occur for me. I’m using the P_Steam_Lit particle in a third person template map. I’ve left the warmup time for the Particle System as the default of 7 seconds, and I’ve made my warmup 5 seconds in the Sequencer Movie Render settings. I’ve got a master sequence with 2 sub-sequences. Also the particle system is simply placed in the level with Auto-Activate enabled.

Does it seem like I’m missing something?

Hi ,
That sounds correct. I have not been able to reproduce the issue in a simpler test case either. I tried to test other possible factors, such as the sequence being 1 minute into the master sequence, the sequence’s camera location being very far away from previous sequence camera locations, and many particle emitters being placed around the level, but none of these worked. Unfortunately I cannot send the original project for reference. I will continue using the workaround of capturing each individual sequence solo. Thank you!

Let me know if you figure out a consistent repro or narrow down the parameters for this behavior. I’m marking this resolved for the time being.