Hi,
I have a TBS6590 (support replaced my 5580 a few months ago since CI was crashing on it). It's almost completely OK, however there is one encrypted channel (every other channel is ok, both encrypted and unencrypted) where the driver (or the CI API causing this) causing an ntdll crash.
I'm using DVB-C with symbolrate 6875 and QAM 256, and only one channel behaves this way, so I think it's a software issue. It affects both DVBViewer and DVBDream. I don't watch this channel frequently (BBC Earth HD), therefore I didn't notice this until dec. 2020. On the same frequency (642mhz) there are two more channels, but they're unencrypted and playback is ok on them (I don't know if this matters or not).
It's somehow related to the encryption/decryption, yesterday my provider added and removed some channels and there was a few hours when all channels were unencrypted, and in that time playback was working on this channel too.
DVBDream crashes completely with an NTDLL error when I switch to the channel, while in DVBViewer I only see the exception in the logs and the screen is black (in dvb source properties dvbviewer writes that both audio and video is connected but no data - obviusly because something is crashed).
I've tried both driver version 1.0.1.3 and 1.0.1.4 with CI API DLL 1.0.2.0, 1.0.2.2, 1.0.2.3 (downloaded from MediaPortal NuGet) and 1.0.2.4 (you sent me this as the last test for the 5580), result is the same in every combinations.
I've also did a clean windows reinstall, but the same happens. Didn't try on linux though. If it's necessary I can do an install of a Linux, but want to avoid this if possible.
Can you take a look at this? I've attached some screenshots and logs to this post.