Okay, just for fun! I kept my (would be) original question below

For some weird reason my shield was unequiped (?) and I did not notice (??)
What I did notice was: Shield lob was not working. after researching everything (except my equipment) I came here to see if anyone had a hint to what was wrong.

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Weird thing happened today. My shield lob and shield bash stopped working.
Lv 30 GLA on my LV30 class quest. Says "Cannot use it yet"
Q: Am I missing something?
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A: your shield! nimrod