I have no clue where its coming from, but i want it to not exist anymore. not sure where to even begin looking to rectify this problem. blank red bar pops up during dungeons/raid boss fights so im led to believe it's related to that specifically. i dont mind having the reg. boss health frames up since they can be semi-useful ,but the blank red bar is really irritating me everytime i see it.
If you notice in bottom left chat frame- there's the framestack report when the area is moused over.
UI is mainly Rufio classic -http://www.wowinterface.com/downloads/info18074-RufioUIClassic.html-(not most recent update,which i dont use for other unrelated reasons) the only additional addons enabled in screenshot arre Clique, Debuff filter, Arkinventory and MoveAnything.
thanks for any help!