As an alchemist character i was trying to give my golem 2 opal gems but i noticed that it does not give me that possibility anymore because for some reason the golem now takes -all- the opal gem from my stock, not just 1 making it impossible then to give 1 by slot
screenshot example :

here it took my 7 opal gems and my 8 amethyst ones.
I wouldn't complain if the gem effect was multiplied by the amount of the stack the golem is taking

, but it's not, and while it's not much of a problem early game, when you'll have tier 5 gem and the ability to do more slots, that's going to be really bad.