Mirror app does not list RGBGenie ZB-5121

I have paired a ZB-5121 decora monochrome remote to manipulate a Sengled monochrome bulb. I noticed that the Mirror app does not recognize this device as a remote, forced to use the 'Button Controller' app.
I would prefer to use the mirror app to control. Does the Mirror app not recognize this device as a remote? If it should, please provide some advice on getting this device visible as a controllable device.