I attach an example but the problem relates to a number of instruments and situations. I was plotting a 60 minute bar of KC-09/2014 and during realtime feed last bar showed suddenly a wrong low, reloading all historical data it led to correct plotting but after a while the mistake came back. Historical data do not contain the wrong number as you can see from attached downloaded info.
I have 7.9.1000.22 with TWS 944.3
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