Particle system delay working in editor, bugged in game

Hello everyone,

I am having an issue with the particle systems delay, it works perfectly in editor, but as soon as I hit play, it kinds of does what it wants. Some particle aren’t even spawning. I am using 4.16.3 in case it matters.

I have tried play from here, “play button” in editor, standalone, and it’s never working.

For particles I have tried to put the delay on the emitter and on the global particle system. Same issue.

Any idea of what can cause this issue?