Android : Android 5.0+ hides "Bluetooth pairing request" from user in notification area

I see this very confusing issue on GPE devices (Nexus, Moto G) with Android 5.0+ (still exists in Moto G with 5.1). I`m working on android application that connects to a custom board via Bluetooth (RFCOMM). When I initiate connection Android frequently shows "Bluetooth pairing request" dialog and ask user click "pair" button. It is normal behaviour. But with Google Play Edition devices like Nexus(5,6,9) and Moto G(may be with other GPE devices too). This messages do not appears to user. Instead android hides it in notification area. As result users do not understand that some user actions required. From user prospective app hangs up.

This dialog is not a part of the application. With Samsung Galaxy devices I do not see this issues.

Is there any workaround to show this dialog on top always?