HDMI-CEC some buttons not working on Vero2 that do work on Pi2

Interesting. Vero 2 is configured as a Player by the bootloader but it behaves as a Recorder on Pi. You can try editing this file and see if it fixes things:

Edit /usr/share/kodi/system/peripherals.xml. Change

<setting key="device_type" type="int" value="4" configurable="0" />

to

<setting key="device_type" type="int" value="1" configurable="0" />

This change will be overwritten by future updates, but the plan here is to see if this works for you.