Niagara grid problem on packaged project

First of all I’m sorry if this isn’t in que right category or if I use the wrongs tags, this is my first time publishing on the forum

Thanks a lot for taking the time to read this. I’ve been dragging this bug for months now and I’d be really grateful if any of you could solve it! Here are all relevant images: Niagare grid problem on packaged project - Album on Imgur

So here’s the issue: I’ve made a grid out of some static mesh tiles with niagara and it works great. The problem is that, when I package the project, the whole grid seems to spawn on the same point and makes the game’s fps drop like crazy. I tried CPU sim ad GPU sim with large boundaries, but it doesn’t seem to do anything to help.

Again, if you know how to fix this, thank you so much. If you need a screenshot of a specific detail pannel or something like that, just ask!