Brigadier

Mine as well, https://www.dropbox.com/s/hg06blqhux965gb/AVC and ZeroMini.zip?dl=0

Have you checked LSM's settings on the home screen? I can't recall but I don't think UserLoadingScreens folder is included by default. I could be wrong. I'm successfully running LSM on 1.12.2, see the Squad image and then immediately into my pics. At one point the final image was repeating at an abnormal frequency but that seems to have solved itself. I'm wondering if, on first invocation, LSM has a hard time adjusting the display time.

Updated via CKAN. Sorry, no change. Error remains.

No, unfortunately the error still occurs. Thanks for your support.

I have two game installs, 1.11.2 and 1.12.2. There exists one copy of AVC in each install under KSP-AVC\Plugins, and one copy under ZeroMiniAVC\Plugins but only in the 1.12.2 game. Reinstalling ZeroMiniAVC doesn't remove that copy of KSP-AVC.dll. Should I manually delete that latter copy? Roger. ZeroMiniAVC didn't exist in the cache. Lots of old KSP-AVC versions in the cache, so I deleted them all.

So when do I install USI LS, before or after copying the constellation (since it wants to overwrite a ton of files)?

So, you're saying to remove via CKAN the mods USI ART, Core, Exploration Pack, FTT, MKS/OKS, LS and Tools, which collectively will remove Karbonite, Konstruction, Malemute and Sounding Rockets, but not CCK which should be replaced with the version in the constellation. Do I have this right?

I would like to use the bleeding edge constellation for USI mods. I generally use CKAN but in this case, because I have to, I've downloaded the constellation from GitHub and copied the GameData folder into my KSP 1.12.2 install. It appears to be working as advertised but it's really too early to tell, i.e. no failures in the logs or on screen so far. Unfortunately, CKAN is still reporting the previous version (1.4.0) from last December as being installed which is just confusing. What USI mods should I remove using CKAN and then reinstall from the GitHub bleeding edge constellation? I'm early in my save so I'm not worried about anything changing radically or breaking. Should I be??

Removed KSP-AVC via CKAN, which flagged the AVC directory contents as not having been installed by CKAN previously. I let CKAN remove the folders and contents, and verified in the GameData folder than no KSP-AVC directory existed. Reinstalled via CKAN and launched KSP from CKAN (thus avoiding running the wrong version of KSP ). Noted the dialog that stated AVC 1.4.1.6 had been installed. After attempting this process twice, just to be sure, I'm still suffering from the same problem.

Agreed Edit 1: The install dates for these two (not shown in the image), are both 20 Oct 21 11:00

I'm not sure if my recent AVC error (AVC updated via CKAN on a KSP 1.12.2 install) is CKAN-related but FYI. Perhaps something wrong in the netkan file???

Updated KSP AVC via CKAN in a KSP 1.12.2 game and received this error on first start. I don't think you need a log file but if so https://www.dropbox.com/s/c11408a70vn3mki/KSP.log?dl=0.

Just to confirm: You're saying you started with a fresh, clean install, added your mods in small groups, ran the game between each iteration, and looked at your log for NullReferenceExceptions? I found 11.3k NREs in the file you uploaded, so I'm not quite sure what you did do. After which mods did the NREs start showing up? Just before the first NRE there is a Crash Report that seems to be associated with WingProcedural which, in turn, seems to be part of B9 Aerospace. It appears that you haven't got all the dependencies. Mods CactEye2, HangerExtenderExtended and ButtonManager need ToolbarController and KerbalKonstructs needs CustomPreLaunchChecks. From where are you downloading your KSP game? I've heard of problems in the past related to installing KSP directly under C:\, but I don't know if that's still, or ever was, a thing.

I replied to your post in the MechJeb topic. 20k NREs in that log, admittedly a lot from CTB but I don't believe it's the root of the problem.

Wow, almost 20k NullReference exceptions in that log. I think you have KSP/mod version incompatibility problem (TweakScale, Procedural Wings, Tantares and Tundra Exploration, for starters). I'd start by removing your mods (or starting with a fresh KSP download), and adding them back in in groups to see which ones might be causing the problems. Make sure these mods are compatible with KSP 1.12.2. Are you using CKAN or are you manually installing your mods?