I updated all addons (via WAU) this afternoon and loaded up WoW. I received an error but didn't pay too much attention. When I engaged the first mob, it put his health up like normal. While fighting, neither my health nor the mobs health changed. I ended up killing him and then clicked on myself. My health was down about 75% in the target frame but was still showing 100% health in my frame.
I looked back and have 5 errors in Swatter. The first is: