It looks like the pids are ok, at least for audio and video. VLC is showing the correct pids and that VLC is receiving data. It really looks to me like the channel is not being decrpyted. The "extra parameters" in dreambox edit shows many pids for encryption, but I am not sure which is being used. The output from your cam plugin is probably needed to help any further. In the past I have had to force the pids for decrypting some channels and did find that tuning the channel from the stb can be slightly different from a stream or recording. Sometimes re-scanning the transponder helps.

Another thing to test is if the channel can be recorded while not being watched....