Hi ACWhitehouse,
thanks for the details – version 2.5.7 is now online and handles sub-bouquets properly (m3uiptv, BouquetMakerXtream and Xtreamity create them the same way).
Your IPTV bouquet now shows its groups like "VisionTv - UK | Free To Air" as folders you can expand, with all channels inside and the same numbers as on the box (2233, 2234 …). The player reads the groups straight from the bouquets, so it doesn't depend on the box's EPG screen: when you open a group, now/next for its channels is loaded (as far as the box has EPG data for them). Search works across all groups, and right-clicking a group shows its first channels in multiview.
With around 10,000 channels the first connect takes a few seconds longer while all groups are loaded once.
Update via Help → Check for updates. Let me know how it works on your SF8008s.
Best regards
Zakomania