Surround sound problems with new 15.11 software

Question

Firstly I would like to give a big thankyou for getting the new IP recording software release out it is very welcome.
Unfortunately this has highlighted even more the surround sound issue for me. All my tests have been done over optical (if anyone could repeat the tests over HDMI it would be very much appreciated just to see if there is any difference).
Here are my findings so far with a small amount of testing.
BT TV on Demand
HD 5.1 movies appear to switch correctly
SD and HD none multi surround movies appear to play in stereo from the start needing the menu/surround workaround applying to get surround sound as is the same for the tv box sets and kids on demand.
IP Channels
HD sports channels i.e. BT Sports 1,2 and ESPN (I have hidden the SD versions so haven't tested them) appear to a switch to surround sound correctly
All other channels start in stereo and require the AD button on/off workaround to switch to surround sound.
IP Channel Recordings
Here lies the real problem for me now. Any IP channel recordings (not tested sports channels yet) start in stereo and require the AD on/off button workaround to switch to surround sound BUT as soon as you apply a fast forward or rewind when it starts to play again it has switched back to the stereo feed which is a much higher volume. I hope you can appreciate how annoying this gets that everytime you fast forward/rewind a recorded IP channel to sound switches and starts playing at a higher volume until the workaround is applied (everytime).
Obviously the freeview channels all appear to switch and work fine.
I am sure there is more to find but I just felt it worthwhile getting the issue highlighted AGAIN now the recording ability increases the visibility of this bug.

Answer 1

Maybe slightly harse as with more testing I am not sure if this is a youview/humax issue and is a problem on the catchup player on youview retail also. I have added below to my first post slightly with a few more findings and some clarity. 
When I say surround sound what I am talking about is the Dolby Digital track (this can be 5.1 or 2.0 but in 2.0 format my amp can encode that with pro logic 2 and make it sound like a reasonable surround sound track through my speakers).
After testing through HDMI sound I find that this is even worse and in most cases will not transmit the Dolby 2.0 track at all even using the workarounds.
The freeview HD channels work flawlessly as do the BT sports HD channels (all 3 inc ESPN) (non-HD freeview channels do not appear to carry anything but standard stereo so can't switch no matter what). If anyone has a surround setup check the difference in volume between channel 001 (BBC non HD) and channel 101 (BBC HD) this I believe is the difference between the standard stereo channel and the dolby 2.0 stereo channel.
All IP channels (except sports) fail to automatically select the Dolby 2.0 soundtrack unless forced, as do the catch up channels (tested during programme playback as no Dolby during the adverts) and if recorded switch back to standard stereo everytime a skip/rewind step is made.
Most on-demand content fail to switch automatically to the Dolby 2.0 track but can be forced with the exception of some HD movies with 5.1 soundtracks that appear to work without a workaround.