Hello! I'm currently making a big modpack, I'm already at 223 mods, but when I tried to add some Ather addons (The Aether: Redux for example) my game when I launched it the time of the loading suspiciously decreased and then the game crashed. The crash report was the next:
The game crashed whilst rendering overlay
Error: java.lang.IllegalArgumentException: Failed to create model for minecraft:firework_rocket
The problem fixes if I take out those mods, but it's weird that I've never seen this crash report and then suddenly 6 mods are causing it.
If it helps something: I have Linux, I have the official Minecraft Launcher.