I've noticed that sometimes when I use the subtitles button on the remote nothing seems to happen. But if I then press Info and go to the subtitles section it tells me that Subtitles are ON for this programme.
If I start by pressing Info then going to subtitles and pressing OK, the subtitles are always displayed.
If you leave the programme playing, and wait a minute or so, do subtitles then appear? (Slow on the uptake, perhaps?)
Is this affecting any particular channels?
I don't know how long I've waited tbh. I probably just wait a few seconds before thinking "Oh, it's that subtitles problem, I need to go via info to get them" and turn them on that way. I don't know if there's a pattern where it's just some channels, or if it's only recordings.
Re: Subtitles are ON, but nothing visible on screen
I did some testing and I think I figured out what's happening. It's not quite what I thought it was, and it's a bit of an edge-case that maybe only a strange person who watches programmes weirdly might find. I sometimes watch parts of programmes on the first fast forward speed (not quickplay) because you can still see subtitles at this speed. But it seems you have to put subtitles on first and then fast forward. So this works fine:
Start watching a recording (or rewind live TV a bit and press play) Press 'subtitles' or use 'info' to switch subtitles on Press fast forward once (>>) Subtitles are still displayed Press play or << subtitles should still be displayed Press subtitles again to switch them off. All good.
This doesn't work:
Start watching a recording (or rewind live TV a bit and press play) Press fast forward once (>>) Press 'subtitles' or use 'info' to switch subtitles on
At this point, no subtitles are displayed, but the system thinks subtitles are on. And if you press play or << now, the subtitles still don't appear. Because the system has (correctly) set subtitles to be on, however, if you stop watching this recording and go to live TV, subtitles will be displayed.
So, like I said, it looks like it's not something that would trouble most people. I think technically it's a bug, but pfft... not one worth worrying about.