Disenchanting only gives back 1 out of 2 enchantments

[tingdingdong]

Hello,

first of all, thank you for your work.

I'm playing BMC4 right now.
It's the first time I'm using any Disenchanting mod.

I found an enchanted pickaxe with Fortune II and Efficiency II. [1]
When I try to move it over onto a book, the book gives me Effiency II only - Fortune II stays on the pickaxe. [2]
The pickaxe then loses* the "glowing echantment effect" but still has Fortune 2 on it. [3]
When I try disenchant it again, the outcome stays empty (no new book is shown).

Am I doing something from?
Thank you in advance!

[1]

[2]

[3]

[BlueShadowRO]

Fortune 2 is not an enchantment, it's a characteristic of the gold pickaxe, so you can't remove both enchantments because that pickaxe only has one, not two. If you look closely, it's also written in a different font.