when launching, i get a pop up about something that when i click ok it takes me to the nexus mods page for the archiveinvalidation mod.

the mod loads to the main menu and when i click new game, it just loads forever, never gets past this point.

anyone have any ideas?

just some clarification, i assumed initially my problem was related to my existing steam copy of fallout 4. i figured these separate installations were sharing the same directory for configs (documents/my games/fallout4), so i renamed the existing fallout 4 directory which caused the new installation to generate a new directory. only after doing this did that popup related to archive invalidation began happening on launch, though before this i was having the same infinite loading issue anyway.

im completely stumped at this point.


EDIT: clicking update in the Fallout London launcher seemingly fixed the issue. i guess it reinstalled itself.

maybe you can help me i have the same problem i changed the main fille title but it wont work idk what am i missing

Same exact problem.

Fresh install of GOG Fallout 4, then installed London. Game loads fine but then infinite load screen on new game

Edit:

Want to add, I downloaded a save file for London past the new game start, and trying to load it causes a CTD.

i user on reddit posted a fix for this, i will lift his post since i do not know how this forum feels about external links (thanks reddit user Abstruse)

I got a bug with my install. I just purchased the game on GOG specifically for Fallout London and had a fresh install, but after installing it kept getting stuck on the loading screen.

The Problem

Fallout 4 saves configuration and save game files to a folder in your Documents or My Documents folder (depending on your version of Windows). Specifically C:\Users\{Username}\OneDrive\Documents\My Games\Fallout4 on Windows 11 and similar folders for other versions of Windows.

If you have more than one installation of Fallout 4 (one from Steam and one from GOG, or one from GOG and one from Game Pass), they both will use this same folder. Regardless if they're installed on different hard drives, they all use that same My Documents folder.

If you are doing a "Clean Install" but did not delete the My Games\Fallout 4 folder, you did not do a clean install as a bunch of files were left over.

The Solution

EDIT: Below is my original solution, but Certain-Beet added the following:

I had the same problem and it was because my FalloutCustom.ini was overwriting the Mods INI Files.

So just deleting/Renaming the FalloutCustom.ini should fix it.

This option is if you don't care what happens to your previous install of the game:

Step 1: Delete the My Games\Fallout 4 folder

Step 2: Run Fallout 4 once with no mods or anything. This will recreate the My Games\Fallout 4 folder.

Step 3: Either install Fallout London if it's not install or click the Update from the Fallout London launcher to re-check the files and transfer anything needed to the My Games\Fallout 4 folder.

OR if you're like me and want to keep both your Fallout 4 installs (GOG for Fallout London, Steam for my heavily modded Fallout 4 install), here's what I did:

Step 1: Uninstalled Fallout 4 and Fallout London

Step 2: Rename My Games\Fallout 4 to "Fallout 4 STEAM"

Step 2: Reinstalled Fallout 4 from GOG, then run it once to re-build the My Games\Fallout 4 folder

Step 3: Install Fallout London and you're ready to go

Step 4: To change back to your Steam install, rename My Games\Fallout 4 to "Fallout 4 GOG", then rename "Fallout 4 STEAM" back to just "Fallout 4". Reverse the process to switch back.

Warning: You MUST make sure that you're using the correct My Games\Fallout 4 folder with the correct install or it will start re-writing files when you launch it, up to and including possibly irreversably corrupting save files. If you do this, make SURE you're renaming the files AND back up your save files often!

If anyone knows an easier solution than manually renaming the My Games\Fallout 4 folder, I'd love to hear it but to the best of my knowledge, there's no mod or mod manager that handles this automatically nor is there any setting file to change the location or name of the My Games\Fallout 4 folder.

I've tried installing London using the launcher. I've tried installing London manually by copying the Data files directly into the Fallout 4 installation. I've tried setting up London as a profile in MO2. Note with all of these attempts, I have used a clean installation of Fallout 4 (GOG version on Windows 10), including making sure the My Game config files are cleared as described above. Nothing works. Fallout 4 always freezes and stops responding shortly after selecting "New Game" and the slide show starts playing.

I'm a fairly experienced modder, and I'm at a loss for this. It's not worth the frustration and time wasted re-installling/copying files at his point.

Had this problem and noticed a temp file in the .INI folder. I opened it with a text editor and it was an INI file.
Renamed the fallout4.ini fallout4-old.ini and renamed the temp file to fallout4.ini Game now gets past new game movie.
Also insured the archive invalidated =1 was in the ini, but the temp file had it already.

Now I get frequent crashes on zoning but that is another issue.

I had this issue with Vanilla Fallout 4, but found alt tabbing out of game then back in fixed for vanilla and thankfully it works with London as well.