logitech roommate room control page icon error

im having issue with logitech zoom roommate kit using room control page with JSON file.

i set the icons that fits the functionality and all of the icons are turning into arrow icon once in a while. that get fixed if i reboot the system or leave it for long time then it fixes itself. 

im not sure what is triggering that and end user getting confusion by all of the icons are turning into arrow and they dont know what they are pressing in the room control page. 

have anyone experience that and know how to fix the issue?