TC55 not scanning after EMDKOS update

I have a Motorola TC55 device that runs on Android Jelly Bean 4.1.2 which i upgraded using the EMDKOSUpdateApp APK.My EMDK service now is 4.0.4.0.

Since then if i run DataWedge i'm able to start the barcode scanner but the QR is not getting scanned and i get no results.

 

Any hints on what is wrong here?