Posting for a HC player:

Lvl62
IGN Shaquiloneal

Issue:
WM skill disappears when other pets get equipped besides the folowing 4/18 pets:
LvL32 scorch
LvL24 wrathjaw
LvL15 kettle
LvL1 frost

Even if player used the skill map to set WM back in map, with any ohet pet than the 4 named above the skill is not present.