Map5 lagging and freezing

So my alliance has been running maps 3-4 the last day or so with no issues or lag. Today we decided to start map 5 and we're ALL experiencing an incredible amount of lag when the AI goes to use a special. Addintionally myself and a few others are noticing evades and blocks are not registering correctly. Is this an ongoing issue that is in the process of being fixed? I'm seeing numerous post on the forums about the same thing with no response from any sort of moderator or admin. It's discouraging to attempt to progress in a game when it feels like the developers making changes that hinder progression. Does these issues pertain solely to map5? Should we only run maps 3-4 until a fix has been issued? Lately It seems like every time there's and update something else gets broken...