I don't have an H7 so not able to update regularly so when I had access to a box today I totally rebuilt the build for this box with latest nightly build of ATV 6.1 and there are no software updates available at the time of building.
In the initial release a locally stored ipk file was installed to install the picons when first being set up.
I have altered the method used so the picons are now downloaded from our server to /media/hdd/picon if the folder does not already exist. In addition only the picons for virmin and UK sat are downloaded saving a large amount of space that is wasted by unused picons.
If channels or picons change, delete the /media/hdd/picon folder and then restart gui and they will be downloaded...