This occurred while running forward over night in time on a Tick Replay enabled ES 06-18 5 Min chart. Not sure what happened, but you can see CLOSE is now got a black background, OHL are all the same value, and CLOSE is outside the HL range. I will see if I can reproduce it, but could be a graphical resource (rendering) crash of sorts. Never saw this before.
EDIT: BTW, the chart looked fine, just when the cursor was run across the Data Box showed bad data, not sure there was any commonality (like Open was correct), seemed almost random data in that pattern.
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