He's not appearing for me either, despite doing the usual
Is that Shovel the quasit? This thread is about a missing spade.
If the quasit (guessing it might be as you said "he"!) did you find his scroll, but he didn't appear when it was used? Or was the scroll not there? I had no problems summoning him last playthrough, but though I wasn't sure I thought the scroll might have appeared in a different place.