Anyone else notice ICC bugs recently?

Hey there, I have been running ICC xmog and mount runs and noticed lately mobs pathing changed, particularly spider room just before Sindragosa and the dragonlings at Sindragosa platform. Also the various groups on the way to the Blood queen.
Previously they would run toward you as you aggro them, now some run away from you.
Also the Lich King getting stuck before first ice wall in Halls of Reflection. Won’t move.
Can’t finish instance.
Anyone else doing these notice too?