When starting up the game, KubeJS runs into a null pointer exception (stacktrace) in the StampingRecipe.getResultItem function.

Running a /reload command causes things to work properly.

Using:
Embers Rekindled 1.20.1-1.1.0
NeoForge 47.1.84
KubeJS 2001.6.4-build.114

You should be able to lower the priority from kube recipes and make kube load all the tags first, in theory that should fix it

If this is happening before a world is loaded then kubejs is trying to get the result of a recipe before tags are loaded, I can handle that a little more gracefully to prevent the log from being spammed but it still won't work properly.

I have 100 some odd mods loaded, but after reloading the world all embers machine recipes disappear from JEI, however they still function, I don't know if that will help track down the bug or not