[Solved] Problem with lightning effects

[Erkki2]

Hello! I've encountered a strange problem when using custom lightning effects. I've used them a lot, and never had a problem like this. When I import LightningData.slk to my map, all my lightning effects stop showing (even preset ones). I can import LightningData.slk on any other map and it works fine. What could cause this issue?

EDIT: I found out that the lightning IDs had changed in that slk file (I don't remember changing them). Therefore some lightnings worked and some didn't. I changed them back and now they're fine.