DislikedI have witnessed many times that MT4 quote freeze but not in Desktop Pro. It happened not just in high volatility but sometimes also in low volatility. Thanks to the crazy volatility an hour ago I finally discovered the reason that caused MT4 freeze is negative spread!
The freeze actually began the moment the EURUSD dived at 10:58EST for just about 7 second. It freezed again at 11:00EST and 11:02EST but this time it is long enough for me to witness the spread in desktop pro was actually in negative (as high as negative 4pips++!) during the freezing...Ignored
See attached screenshots, top chart is MT4 tick chart, bottom chart is Desktop Pro (API) tick chart. The arrows indicate three situations where the Desktop Pro spread was negative, but the MT4 spread was positive (or 0). When viewed in real time, sometimes MT4 does appear to be frozen during these negative spread situations. However, since most times the real quotes are negative for just fractions of a second, the freezing of the MT4 goes unnoticed.
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