I'm running tvheaded 4.2.2 on an OSMC Vero 4K with a Sundtek SkyTV Ultimate 6 DVB-S2-to-USB dongle (this is the version of tvheadend that OSMC offers in its “app store”, and the build date is 7 September 2017). I have a dish with two LNCs, one for Astra 1 and one for Astra 2 (for UK Freesat). The Astra 1 side of things appears to be working fine, but Freesat is giving me trouble: While this setup does not have problems receiving individual channels, or channels from various muxes (so switching between the feeds using DisEq works), I can't seem to be able to obtain Freesat bouquet information from the designated muxes on 11425H, 11426H, or 11428H on Astra 2, which I had to add manually. Whenever I try to “play” any of these muxes from the “DVB Inputs » Muxes” tab, I get messages like
2018-01-02 21:42:27.720 subscription: 0230: "HTTP" subscribing to mux "11425H", weight: 10,
adapter: "Sundtek DVB-S/S2 (VI) #0 : DVB-S #0", network: "Astra 2 (Freesat UK)",
service: "Raw PID Subscription", hostname="192.168.178.20", client="VLC/2.2.7 LibVLC/2.2.7"
2018-01-02 21:42:37.723 subscription: 0230: service instance is bad, reason: No input detected
(I see lots of bouquets for BSkyB.) The configuration for this mux is Enabled, EPG scan = Only UK Freesat, Delivery system = DVB-S, Frequency = 11425000, Symbol rate = 2750000, Polarization = H, Modulation = QPSK, FEC = 2/3. The situation for 11426H and 11428H is similar. In the mux list, these muxes show up with an “original network ID” and “transport stream ID” of 65535 and the scan result is FAIL, unlike most of the other muxes, which have a network ID of 1 or 2 (depending on whether they're on Astra 1 or 2), a reasonable-looking transport stream ID, and a scan result of OK. Signal quality is unlikely to be an issue in general because everything is fine when watching stuff either on the computer or on the TV, which has its own connection to the dish.
Any hints as to what I might be doing wrong?