<div dir="ltr"><div><span style="color:rgb(0,0,0);font-family:SourceSansLocal,source-sans-pro,"Source Sans Pro",-apple-system,Roboto,"pt sans",calibri,sans-serif;font-size:16px;background-color:rgba(240,240,240,0.3)">Hi, </span></div><span style="color:rgb(0,0,0);font-family:SourceSansLocal,source-sans-pro,"Source Sans Pro",-apple-system,Roboto,"pt sans",calibri,sans-serif;font-size:16px;background-color:rgba(240,240,240,0.3)">In math-hurdle activity , the activity freezes on startup, one of the reasons behind which could have been starting pygame loop before activity constructor returns. I have checked that the activity constructor is returned before the main pygame loop is run  but i am still not able to figure the problem out. Is this a problem that i alone am facing ? </span><br><div><span style="color:rgb(0,0,0);font-family:SourceSansLocal,source-sans-pro,"Source Sans Pro",-apple-system,Roboto,"pt sans",calibri,sans-serif;font-size:16px;background-color:rgba(240,240,240,0.3)">Thank you</span></div><div><span style="color:rgb(0,0,0);font-family:SourceSansLocal,source-sans-pro,"Source Sans Pro",-apple-system,Roboto,"pt sans",calibri,sans-serif;font-size:16px;background-color:rgba(240,240,240,0.3)">Ashish Kumar</span></div></div>