Not sure if anyone else already had this issue with it being solved but, I recently got someone to do particle effects for me which work perfectly fine on their baseplate when they upload it, but when I try adding it into any other games then it refuses to load.
If you look at the Texture property, it’s showing a directory from the creator’s computer, which means they uploaded it directly through studio. So, it was uploaded as a Game Asset.
Replace what’s in the Texture property with the lightning particle’s roblox ID. (for example)