Dual Apps not working in M51 after the latest upgrade which came 3 months back

[Members_V1ET7vU]

I was using dual whatsapp in my M51 but after the latest upgrade now when u install dual app the serving app does not open only.... Can u tell what is the fix for the same.... 

Can someone help on the same?

[PranovKumar]

It is working fine for me