same here and I have spoken to several trades remote who all are having the same problem.
I spoke with IB who then acknowledged the problem and is going to look into it.
We noticed this has happened more and more over the last few wks.
I did see a lot of crossed quotes on GMS stocks as well. I think it was the directedge feed (not 100% sure, but I ended up blowing out all the destinations and visually filtering out the bad quote).