Backroom question:
Have you experienced a glitch/bug in the system, in which an item STO'd into a location will then show up located somewhere else instead?
example of what I mean: I'm backstocking a tub of items, and I STO candles into aisle 33 (the dedicated STAT aisle). 30 minutes later, I'm working on a different tub, and I get more of the same candle that I backstocked earlier in aisle 33, but when I scan it, I get a Previous Location in aisle 29 (HIPA). I'm thinking maybe its a similar item instead of the exact same item. I check the HIPA aisle for that misplaced candle so I can move it to its proper fillgroup, and find that its a ghost. I go to where I backstocked the candles earlier, and scan the ones that I STO'd previously to A) compare DPCI's, and B) see if its located where I scanned it, only to find out that it is the same candle, and somehow it did in fact scan into an entirely different aisle. So I fix the ghost, rescan the candles (with the new quantity) into the proper location, and double check to make sure it scanned properly into location.
I've personally experienced this a couple times, I've talked to other people who have had it happen as well, and we occasionally just run across something strange like apple sauce scanned into the shoe aisle (and it turns out to be a Ghost). I've reported the issue to various leaders over the years, and either it isn't being communicated up the chain so that it can be fixed, or it is and they just aren't fixing it.