Earlier today, while watching $KBLB, my Level 2 window in ETrade Pro didn't update my Level 2 window correctly. Looked like there was a 15K chunk for sale @ $0.0715 ( or something like that) but it didn't seem right because prints were higher. Sure enough, I changed the ticker to something else and then changed it back and it cleared the 15K that wasn't there any more as I suspected. This has happened to me too many other times to believe that it was just a coincidence in my timing.

Now that I think about it, I'm pretty sure that I've only seen this issue on the Ask side of the Level 2 window but it possibly could happen on the Bid side as well. When ever this happens I'll see trades going for a price that's higher then the lowest Ask. Some times this happens when there is a big spike and I think that's just people freaking wanting to get in so bad that they go for the 2nd lowest priced Ask instead of the first. But if I repeatedly see trades going for a price that's higher then the lowest Ask, a lot of times just by switching the ticker quickly it will refresh. It doesn't even matter if you mistype and type in a ticker that doesn't exist. When you change it back it should refresh. 

Once again, I've seen this problem a lot so I just figured that it was something important to bring up.

 

Let me know if you've had similar issues,

Rob