my strategy testing does not work

[jjj eee]

my strategy testing does not work, it's stoping when I click start, it stay where it is, no activity, you know why ? Is it because of updates of MQL5 ?

[Laurentiu Octavian Niculescu]

You should check what is written in the Journal tab,

maybe you find some error logged.

[Tonny Obare]

Mt5 strategy tester can be confusing if you are used to mt4. Maybe there is no history for the pair you are testing or the terminal is having connection problems or is offline.