Thanks Carlos - I updated over the weekend and the settings for my lights are now showing on 2 of my devices ( yeah! ) without me having to re-enter the settings.
I did notice that the groupings for my lights were different on my two devices:
I have 3 Maxspect Ethereals
My iphone has LEFT and CENTER grouped together, the RIGHT one is ungrouped. This is the correct grouping
My tablet has LEFT and RIGHT grouped , with the CENTER showing as ungrouped.
I did delete the app and re-installed it with no change. Is the grouping data somehow kept local to the device and not stored on the IVC6?