We never had it set to scramble after each round. But I can tell you the difference you were seeing...
About 2 weeks ago DICE released a BC2 server update that broke the rcon tool we were using to scramble "Wolfcon". Wolfcon is no longer supported, so scramble was no longer an option, however we have been using dual rcon tools, the other was Procon. Unfortunately Procon did not have a scramble plugin that was working. Our clan offered $100 for a scramble plugin to be developed for the BC2 community. As of yesterday we once again have a scramble cmd that we can use when teams get out of wack. In fact we used it heavily this evening. Because of TKC the community once again can enjoy scrambles when teams get out of balance. And not only that, but we are talking to Procon developers about creating a more advanced scramble plugin that will take into account players skill level. So you see, we acted as quickly as we could to the problem.
Thanks for playing on our servers.