Are there monsters that do not allow your Club skill to rise?

[McMasters]

in a similar way that crystals do not drop off of monsters you don't get XP from?

[Xeross]

from what I've found, the closer your weapon skill gets to its level cap, the harder enemies you have to face to raise the skill.

So if you are fighting a bunch of easy monsters, the skill will only go up if its pretty low.