[11:14:50] [Render thread/ERROR]: Found a broken recipe: net.geforcemods.securitycraft.compat.jei.ReinforcerRecipe@7ace37d1
Outputs: net.minecraft.item.ItemStack: [[1 air minecraft:air]] Inputs: net.minecraft.item.ItemStack: [[1 reinforced_yellow_stained_glass securitycraft:reinforced_yellow_stained_glass]]
java.lang.IllegalArgumentException: ItemStack value must not be empty. 1 air minecraft:air

Stacktrace-
https://gist.github.com/ProsperCraft/119ba3dcb13133aa635a5980a91da18b

Full log-
https://gist.github.com/ProsperCraft/33e72612a237803ad114191e96e8b2b0

[1.16.3] SecurityCraft v1.8.20.1.jar

How can I reproduce this? Simply starting a client/server does not yield the error and the recipes involving reinforced yellow stained glass show up fine.

We have not found a way to reproduce it , it happens without any specific actions on our part.

Here is the pack, it may be a mod interaction- TownCraft TWO for 1.16.3

Digging through logs, it appears to be systemic, and I will have to do mod elimination to find who is causing this -

https://gist.github.com/ProsperCraft/7ccdfbd95b3437ce618417c187f9947b

It looks like any time a recipe is broken it crafts to air.

Closing this, as it seems like it's an issue that is caused by another mod. If you can narrow it down to SecurityCraft being the culprit, please comment again with reproduction steps, so we can figure out why this is happening.
If it helps, I have added some more verbose output to the reinforcer recipe. Instead of Found a broken recipe: net.geforcemods.securitycraft.compat.jei.ReinforcerRecipe@7ace37d1 it should now tell you something along the lines of Found a broken recipe: Reinforcer Recipe - Vanilla Block: minecraft:dirt - Reinforced Block: securitycraft:reinforced_dirt. This is not in a released version, so you would have to download/clone this repository, and run gradlew build to get a jar file of the mod with this change (it will be in build/libs after the build task is done).