Unable to Receive the CODE parameter while installing app to development store from Partner account

[AdilNaeem]

Hi Support,

I am facing an unusual issue that while developing app when try to instll it from

Partner Account-> Apps ->Selected App -> Test your app -> Select Store 

Upon installation I don't receive CODE parameter on my redirect_uri but receive hmac, shop and timestamp 

and the problem is without CODE we cannot generate access token so the app will not work

The confusion is I receive all parameters including CODE when install the app with url string like

https://xxxxxxxx.myshopify.com/admin/oauth/authorize?client_id=xxxxxxx&scope=xxxxxxxxx&redirect_uri=xxxxxxxx  

and app works fine 
So when I submit the app for Approval they deny with eligation that installation failed.

Kind Regards,

[AdilNaeem]

Partner developers 

I sincerely need help with this as this is not related to code but shopify partner dashboard itself.

[_JB]

Hey @AdilNaeem,

Are you still having trouble with this? If so, please provide a shop URL and rough timeframe for when you observed the missing parameter, and we can investigate further in the logs.