Re: glimmer brook to magic realm portal load screen stuck!

Here's what I do (and I really should write this up and save it somewhere!). It requires Get Together (to use Clubs as a tool) and the mods UI Cheats Extension by weerbesu and MC Command Center by Deaderpool.

1. First, I set up a spreadsheet with columns for: World, lot, household name, Sim name, and other info.

In the Old save:

2. From the World Map, for every household I want in my new save:

• I write down the World, lot, household name, and Sim names.
• If I need the edited build, I load it in Build/Buy and save it to my Library.
• If I want to preserve that household's club info and relationships with other Sims, I load the household in Live mod and write down key info to save for that Sim (who's a love interest, who's an enemy, club names). Typically, I worry only about relationships that really matter to my gameplay. 
• Then I go into CAS for that household and save it to my Library

3. If any unhoused Sims are transferring over (I don't do this with "special" Sims the game creates), I load them in CAS from Household Manager and save them. If you move them to a lot and play them AFTER this, you can get their relationships without having to worry about them losing NPC jobs.

4. I do a quick run through non-residential builds to save those to my Library, just in case I didn't last time I edited them, and add them to the spreadsheet

In the New save:

5. I go into my Library and place all the builds.

6. Then I go into my Library household section and place all the Households.

7. If I'm moving any unhoused Sims, do that into a vacant lot. For the ones I need to keep their NPC job, evict them.

8. Then I go household to household in Live mode:

• Create Clubs the Sim belongs to
• Create other temporary Clubs to have Sims "meet" each other who they should have starter relationships with. Delete the temporary clubs. (You'll need further of these as you go along.)
• Use MCCC to create family relationships with Sims in other households: parents/children, siblings. (Older genealogy will be lost.)
• Go into the relationship panel and right-click to open UI Cheats Extension. Set relationship numbers about where I want them. (I find UI Cheats intuitive and nuanced for this part, so I only use MCCC for the part just above.)
• Tick off on my spreadsheet that that household is done 🙂

9. Evict the rest of the Sims I want to stay unhoused.

One thing I never bother with because I don't use the feature much is Collections. I think those either don't transfer at all or only in personal inventory, which you'd want to set up before Library saving of the Sims. Might be worth putting goats and sheep in inventory too. I don't move over "special" game-created Sims; I just let the game regenerate those. Also, who your Sims' high school classmates are doesn't preserve across saves; it will randomize again.

I think this is all the steps. It's been a couple of years since I last did it. Last time I had a save corrupt I started over with just a few of my own households and the game ones instead. But I did keep one save going for 8 years before that, moving it, I think, twice, with important relationships copied over!

(fixed a typo)