games and apps on xbox one dashboard more sort options

Seems to be game specific for sure.

I had the glitch with assassins creed happen a few times, usually if I suspend and return to dashboard, then return to game. I found selecting the game on dashboard, pressing option button then selecting close app, and restarting always sorted it out

Given that they have removed the Avatar options from other devices (Xbox One Smart Glass and Games app on Windows 8.1 for example) I don't think that the article is coming to happen as they describe.

The dashboard designs don't really support their placement any more.

From the guide or home, go into Games & Apps, and at the very top there are four drop-down menus which you can use to sort your games and apps. One of them says "All Storage." Click on that and you can sort by games installed on internal or external drives.

I'm not in the preview/insider program, so this applies to the current general release dashboard.

Ok, right I've asked everyone to check their online status and NAT and everything is ok on their consoles. It simply has no option to invite anyone to a game lobby who are playing on an Xbox one and will not show them as online in the game lobby itself yet
it does show them online on the Xbox one dashboard but the heading invite to game is greyed out and unavailable. Think this needs an update to sort it

Please also try to repair both the Xbox app and Gaming Services app to check if that sorts it out.

Please go to Settings > Apps > Apps Features. Select Gaming Services, then click Advanced options. Click the repair button, and do the same for the Xbox app.