Scholar Clothes only accepts 6 tier 1 enchantments
The Scholar clothes tool tip shows 7 available slots for enchantment.
I put 6 tier 1 enchantments and it shows 6/7 but when I try to enchant the 7th tier 1 I get the message "This item cannot be enchanted anymore"
It's correct, an item can't have more than 6 different enchantments. The text is a bit misleading - 7 is the number of enchantment tiers the item can receive - so the only thing you can do is try to push one of the existing enchantments to tier 2. We're going to tweak the whole system in the next test to make it clearer.
On a side note, your post made me notice that resistances still say "%" which is wrong - just fixed
That is confusing and thank you for explaining it