I see; I'm past the mission now, and I'm sorry if my message was grumpy. Now i'm running into technical issues.
It's all good. Feedback helps.
I don't know why, but my nebulas are totally broken. As others have mentioned, they're dazzlingly bright and I can't see ships until I'm literally on top of them.
This should not happen. Please post this either on Mantis or on GitHub so that the SCP can take a look. I'm not a graphics coder so I don't know what's wrong.
We did find that it works properly in 3.7.4. Also, using the following command-line, it works on recent 3.8 builds for me:
-mod "scroll,mediavps_2014" -nospec -nomotiondebris -nonormal -noheight -nolightshafts -no_deferred
Goober, do you want me to try and handle this?
Also, everyone should specify whether they downloaded the mod from the thread, from the FSO Installer, or from Knossos; and also when they last updated their files.
So, coming back several months later, I have attempted your fixes and am still encountering blinding light on the mission "Masks". This is what I see.
Update: Fixed it by disabling post-processing! Was trying various settings and narrowed it down to that.
Edit: Yet another game-breaking impasse.
In Irkalla Passes, I have three times now failed after jumping out because the Khitteb will not jump out. It sits at the node, and so the Himnoltep and Halifax won't jump out either. I set the time compression to 32 and waited for a minute, and the Khitteb still just sat there. When I jump out, I get a victory debriefing but fail the mission and have to retry. I am just going to suicide skip it.