Ran Tick Strategy Tester for all of 2016 on Daily chart, symbol GBPNZD.trw (TradewiseFX broker) . Suddenly report tallied 6,507,865 Mismatched Charts errors with modeling quality = N/A. My Expert Advisor has not been changed so this result is strange. This report shows build number 1065.
Previous runs had 5 errors and quality value of 83.12%. This 5-error report shows build number 1045.
The change in build number is the only difference I can see.