(DoN) Instances broken?

[buckyballC60]

Finished a DoN mission today, replaced a couple group members, lowering the avg group level slightly (from 68 or so, to 66). Got another mission, went to zone in, and it kept saying "it is too dangerous for you to enter". Kicked everyone out of old task, got the 1st mission, and got the same message. This was after everyone made sure to be perfectly free of agro, etc. etc.

Anyone had a similar experience to this? Never happened to me before. I think they screwed something up with the patch; can't they implement a few simple changes without breaking something?

[Kheera]

Yup, all instances are glitchy since patch -- DoN, LDoN, Anguish, Tacvi, guildhall .... just drop and try again seems to be the consensus.

[Ghismonda]

This is a real problem when even GETTING an Ikkinz 1 group instance locks you out for an hour...