The following error happens with productive bees, if KubeJS is installed. Productive bees is unable to create bee recipes for any Gregtech specific bees. This is the main issue, either unable to read inputs, outputs or categories. Note - I am not using KubeJS to alter bee recipes, this is default or vanilla configs:

[09:48:50] [ERROR] ! RegistryAccessContainer.java#150: Failed to read outputs?:capability_map[tick=false] from recipe gcteu:electric_blast_furnace/molybdenum_bee[gtceu:electric_blast_furnace]: java.util.NoSuchElementException: No value present

Here is the kubejs loading log where a lot of productive GT specific bees fail (ignore the BoP issues):
server.log