When the MT4 Tester Optimization mode (Build 625) is used,
the MT4 Terminal always crashes on the second consecutive time Optimization is run.
This problem is independent of computer and specific EA software. It is
independent of which Tester model is chosen. It occurs with freshly
installed builds also. Since the MT4 Terminal crash requires back to back
running of the Tester Optimization, a temporary workaround is to run tester
first, without Optimization, and then run the Optimization process.