Just dropped from a CT run where Atomos platforms were bugged.

Date & Time:
1824 KST, 1 January 2014

Frequency:
Always within this particular run, have not encountered in prior runs

Character Name:
Aria Placida

Area and Coordinates:
Crystal Tower: Walk of Lament

Monster Name:
Atomos

Steps:
1. Engage Atomos boss in Labyrinth of the Ancients
2. Have 4 (or more) people stand on the blue platform in center lane to allow right lane to damage Atomos
3. Platform will not "shine" showing activation. Note that Iron Giant will not spawn, regardless.
4. Right lane will be unable to damage their Atomos, leading to eventual wipe.