A couple of months ago, I downloaded this Sheriff Pack: https://www.gta5-mods.com/vehicles/blaine-county-sheriff-buffalo-add-on. I put it on my server, and I remembered that everything worked.
Today I downloaded the Pack again, and now if I get in one of these vehicles and try to turn on the Siren and Lights, it only uses the horn. It’s not the police horn but a normal civilian horn. I changed the because the pack used a custom sound and I wanted a vanilla car sound. I don’t know why it is not working. I changed the a couple of times and used LUX Vehicle Control, but this also didn’t work (With LUX i got at least the police horn to work).
I know that it used to work. If anyone has an idea how to fix it, please tell me.