When on an item stand my diamond pickaxes are glitching out and flickering yellow. After taking a video of it I paused the video to see what was happening and that they are constantly switching items between the pickaxes and what looks like golden horse armour. (I didn't even have horse armour in the same room so I have no clue why it's doing that.

(Also I don't know what hotfix means but my game is V1.14.60)