Screenshot
https://i.imgur.com/sUVNVks.png

That's probably because of a rocket, grenade, capsule or some other thing the code is trying to generate a primed projectile for. Are you using any mods that add something like that? If you can let me know I can try and add some checks to make it more compatible

yeah, I am playing with too many mods.
I'll try to get minimal mod set to reproduce it after June 30.

hello there :)
I found minimal mod set for a conflict:
- this one
- tapeline 1.1.2

Crash on start as I've provided above

also conflicts with
https://mods.factorio.com/mod/VehicleWagon2

Thanks man, I'll look into it

Looks like both those mods have capsules that dont function like a traditional one so it messed up generating a primed projectile version of it. I added some checks that exclude them and everything seems to work in the new version i uploaded. Lemme know if you're still getting problems

now it works, thanks