Today I saw my reputation go down and up with a strange behavior. Then I got the following:
I shouldn't have 217 but 215. 200 for "normal" reputation (capped) + 15 for the accepted answer. Maybe this is something you wanted to be aware of.
I think it has something to do with down votes I got after cap was reached, then got new reputation point, and now new cap is calculated incorrectly.
UPDATE: I did something unusual. I deleted one of my answer (link) that got 4 upvotes and one downvote (the answer did not answer the question at all). Maybe this case is so specific (cap + deleted question with up/down votes + accepted answer) ?