In your screenshots you are showing an order that completed on Sept 15 for $30, $24 after commission. That part is as you stated above. The tip screen shot says Sept 22. I don’t know if it is the same buyer or not, it could be, buyers are allowed to come back and tip later. Either way, though, that $24 would have cleared on a totally different date than the $4 tip you show in those shots. I can’t really tell anything else from this - it hurts my brain.
You can always contact Customer Service to check, but usually when you add everything up total it comes out right. I’m not saying there is no way to have a mistake, but it is very, very rare on payments. Tips are always processed separate from orders.