Connect IQ SDK 7.4.3 Oauth2 malforms urls on Android

When using the authenticate oauth2 API, the url sent to the default browser by the Connect IQ app is malformed on Android devices.

The url should look like https://requesturl?parameter1=xxxxx&parameter2=yyy etc

But instead it produces https://requesturl&parameter1=xxxxx&parameter=yyy 

The url is correctly formed on iPhone devices. Suggesting the bug is in the Android Connect IQ app