Also, button lag occurs controlling the Vero4K+ via HDMI ARC through my Sony Bravia TV. My TV model wasn't specifically in the database but the generic Sony TV remote setup worked.

The button lag is apparent when controlling all my devices - it makes file browsing slow on my Beyonwiz T4 and Vero4K+ and makes volume adjustment slow on my Yamaha RX-A3080 receiver. All devices were in your database. Thanks..