I can't reproduce either of those issues - this video shows the autoland and cutscenes both working using just 21.2:
I did just push version0.95 to knossos, which contains a fix for the Alcor 2 issues others have mentioned above. Try downloading the new version and see if it clears up any issues you may have had.
I downloaded the .9.5 version (since I don't use Knossos yet what I did was just downloaded the new files from the Knossos page and put them in my /Freespace2/Wing Commander Saga folder to replace the older version). I tried it out and I have good news and bad news:
Good news: I tried Vega 5 through the techroom and the game autolanded me this time and I saw the Vega bombardment and got the debriefing afterwards. I wasn't even able to do that on the techroom before so it looks like this particular issue is fixed for me. Thank you.
Bad news: I've ran into a couple other technical issues now:
-Alcor 2 (the mission you said the new version was designed to fix) won't load now. When I try to start this mission I click on the part of the screen where you're suppsed to click to start/continue a campaign...it goes to the loading screen with the Confed logo on it and the loading bar at the bottom. The loading bar progresses a little bit but then I always get a popup that says "Attempt to load mission failed." Other missions seemed to load fine but Alcor 2 wouldn't. I tried this on campaign mode on my Alcor 2 save file and it wouldn't load...Alcor 2 wouldn't load in the techroom either. Same thing on a Hyperion 2 save file I tried...Alcor 2 wouldn't load. In other words I can't even get into the mission to do the 5x death skip trick. I tried this on multiple builds including 21.2...it looks like Alcor 2 is inaccessible now unfortunately. Can this be fixed?
I don't know if this is relevant to help out but I figured I might as well give you more info: I noticed under /data/missions that mission 36 aka Alcor 2 has two files in this new version. It has M-36-BG-hermes.fs2 like all the other missions do (they just have their respective number in place of 36) but it also has M-36-BG-hermes.bak (it's the only "bak" file in there).
-The Excalibur missions (starting with Hyperion 1) don't have any guns for the Excalibur. After Hyperion 1's briefing, I went to the weapon select screen and missiles were there to pick from. But it showed my Excalibur as having zero guns (primaries) loaded. There were also zero guns shown on the weapon select (left) side of the screen. Usually on the weapon select screen you're able to see the guns you have (even if WCS doesn't let you change guns). When I started the mission there was nothing at all in the lower right part of the screen where your primaries are shown and you can select which gun/guns to fire. It only showed missiles. So now Excaliburs don't have guns.
I was going to say this earlier but I didn't get to it before the recent update, but to be fair this wasn't just an issue with this new version. .9.4 did not have guns for Excaliburs either. I tried the 5x death skip to see if this was an issue in more than one mission but campaign Hyperion 2 had this problem as well.
Now, Excaliburs had guns in techroom mission playthroughs, but not when playing through the missions as a campaign. Can this be fixed too please (I remember no Excalibur guns was a problem in the original standalone WCS release as well)?