Firstly I've not believed it was anything to do with signing in when I can access and play programs, that would be a really strange way of writing an app. Yes, there is another option off-screen in Settings - Sign Out and if I click that then as soon as I try to play a program it tells me to sign in, which is exactly what I'd expect.
The following relates to my box:
1. When FFing through introductory ads only X2 is available.
2. Play freezes the screen while FFing through the introductory ads, only left, right, pause and stop do anything.
3. It will not start playing the program proper unless and until I have let it go all the way through the introductory ads at X2, sitting there watching a frozen frame and progress bar, which is almost irritating as having to sit through the ads. There are multiple ads with the progress bar starting from the left each time.
4. After several bouts of that and having to find a different episode each time (once I have got into the program proper it resumes from where I left off) the introductory ads stopped (until this morning) so I was not able to learn any more about that part of the issue. I've not looked for a 'from beginning' option yet.
5. Speeds up to X120 are only available in the program proper, with no clue as to where I am apart from the progress bar until I press Play.
6. When I get to an ad break part-way through a program X2 and X6 FF options are available but that's all. There can be several ads, the progress bar starting from the left each time.
7. When it gets to the end of those ads, unlike after the introductory ads, it carries on FFing through the program! One has to watch for a change in the progress bar from moving across the screen to being full-width with breaks every fifteen minutes which shows the program has restarted, and press Play.
Does anyone actually use ITVX to FF through ads? It's almost useless and I'm beginning to have my doubts given the incorrect, incomplete and misleading information offered. For me the primary reason for getting this box was for recording six channels, if it had been for ITVX it would be going back and as I say this is my box.