started the raid last night and had a hard time getting the door open. enemies were regening health, and jumping around (not teleporting, just moving due to lag). It took us forever to get the door open.
At the conflux stage, enemies weren't even in the right places. The radar showed that they would be right on top of you, but there was nothing around. even had a couple of sacrifices even though we were looking right at the conflux and couldn't see anything. Once we got to the left/right confluxes, everything cleared up and the rest of the raid went smoothly.
i don't think it was any one person's connection, everyone in our raid was experiencing the same thing. not sure if this was on bungie's end or if xbox live was getting hammered with MCC downloads, or what.