Cinematic sequences cause the server to lag

[Wornsnow88]

Reference ID

7aa6fbd8-467f-c7e3-1a16-c481914a5911

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Stability

Summary

The game server lags whenever a cinematic sequence is played. (Edit - caused by the guard spawner device)

Steps to Reproduce

Activate a cinematic sequence.

Expected Result

The cinematic should play and the server should have no issues.

Observed Result

The server will lag for a little bit, causing things to not work right. Players will rubber band around and some devices will not work right during the server lag.

Platform(s)

PC

[im_a_lama (LAMA)]

Hello, this is random but I once had that on my map, it was a static mesh that I was moving which didn’t like it much :

HELP! My island tickrate is now set to 14

I finally managed to track down what caused this, it seemed that it was coming from another script I’ve made a while ago which was simply starting prop movers that were assigned to hover platforms. Just in case someone from the staff comes here, the hover platforms I used was the ones with the blue fire under them, I think the problem is that those platforms have some children components that are set to static. I actually got a warning in my logger but wouldn’t think it would impact the server…

Maybe you can try disable some sequence actors one by one and see if any is responsible for this ?

[Wornsnow88]

Thanks! I’ll take a look, but it seems like it happens for every sequence, not just certian ones.

[Wornsnow88]

I duplicated the project and messed around with some stuff. The cause of the issues was the guard spawner device.

[ItzSHFT]

I think I have the solution to your issue, we had the same problem but figured it out. Go to the mesh details of the mesh that is in your cinematic sequencer. Turn off “use nav mesh flags” and “can ever affect navigation.” I would also turn off “is spatially loaded.”