When RCU changed hands last year there was a major software snafu. The original software was so badly bandaged together that the new servers just went haywire. The major problems have been fixed, but IB is constantly trying to fix the smaller problems.

Anyone who works with software knows that many time when you fix one thing, something else pops up. That is what you are seeing when the pages load slowly or you get a 500 error - So they undo whatever they did and try something else.

Have faith, they will get it right eventually.