Please include as much of the following information as possible to help me fix the bug:

Brief Description of Bug

Pretty much the same thing as the title. after I rescanned for new prices using the usual scan (fast one) the prices just up and gone. Now it shows "uknown" in the place where price supposed to be

Steps to Reproduce

First time it occured, I think i started to scan and closed the auction tab by moving away from the npc

Loaded Addons

Advanced Interface Options, Angry Keystones, Big Wigs, Little Wigs, DGC, ElvUI, Pawn, Plater, OHC, Postal, Weakauras

Back Trace (LUA Error Output)

You can get this through the use of !BugGrabber and BugSack addons.

Ruling this out from being an issue related to usage with ElvUI, as i don't have this problem using Auctionator and ElvUI.