I read on another topic about other bugs in the crafting system (you can't melt ore after level 5 in metallurgy).
Basically right now it seems that there's not much point to trying to craft anymore.
You can also look it from another side, because you are not possible to craft on you're own now.
The thing you now can do is start working together with the people who are below level 6.
They are not able to stock cast, and you are not able to melt ores.
This can give you new friendships and you learn to work together.
A new expirience that should be done more often.
I noticed since melting and crafting was activated for everyone, everyone hogged upon the
furnace and stock casting, to earn cash and forget about the roleplay more.
I only saw large groups of players around the furnace, to wait for a chance to melt they're ores.
A money wipe and change of ore-prices spoiled the fun in getting big cash and many people were
complaining and unpleased about it.
Now people below level 5 of mining are unable to stock cast and people beyond level 5 are unable to
melt ores, people are complaining even more.
So let say this once again: People start working together to work around the problem, if it is really a bug.
Maybe it's ment to be this way, to give you the chance to share you're abilities with others and cooperate