Niagara VFX do not show at all

Please select what you are reporting on:

Creative

What Type of Bug are you experiencing?

Assets

Summary

Whenever I place down a niagara effect it never shows. It is specific for a certain map I have, when creating a new island the bug does not happen. Is this a bug with epic or is there some kind of setting hidden in the project files?

Steps to Reproduce

None, it is only for my project

Expected Result

I can see vfx when I place them down

Observed Result

See 2 videos

Platform(s)

PC

Island Code

6570-5231-1418

Some map info:
5 years old, converted to UEFN 3 months ago. 1 Bil plays, it is my main map, would love vfx on it.

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