EA indicators not showing on strategy tester

QTZ  

Hi,

When I run my EA on strategy tester, the indicators of that EA are not showing (sometimes they show like 1 in 6 times), and I stop and restart the strategy tester again and again until it shows. . .

Clearly there are some problems, can anyone tell me why this is happening and how can I display them every time I run strategy tester?

Reason: