Abilities disappeared when in Spriggan Form. It was not just a visual bug, I couldn’t cast anything that were once in those slots. I believe I was respeccing my Mastery tree while I was in Spriggan Form for this to happen. However, I did not respec to the point where I would’ve lost Spriggan Form spell. Anyways, I had to manually reassign the abilities. Minor issue but a bug nonetheless.