Can I export a possibly bugged hood and reinstall my game?

[simsfreq]

I wanted a clean neighbourhood with custom townies, so I followed Jordi's clean custom neighbourhood for seasons, but I was stupid and impatient and did it wrong.

Now the invisible "weather" neighbourhood appears in the neighbourhood selection screen. I haven't gone into it, because I have no idea what the game would do and anyway why would I want to? I haven't in fact gone into any neighbourhood except for my custom one.

I have all EPs except Pets and BV (As far as I know, pets is the only other one with an invisible hood.)

The custom neighbourhood I made does seem a bit buggy, but I don't know whether it's related to the fact I borked the cleaning out of the neighbourhoods, or just standard nightlife+ bugs.

Off the top of my head:
Children grow up occasionally without a LTW. I used the lot debugger to fix this.

Using zombie apocalypse, I made a playable into a zombie. When I went to the lot she lived on, she looked like a zombie and made the groaning noises, and had the option to "Eat brains" but she walked like a normal sim.

The social worker gets stuck on a lot when children are taken away. When all the children are gone and the social worker is leaving she freezes (usually unhelpfully in a doorway) I have tried fixing this with the lot debugger but the game sends another one and then they both end up stuck (and the parents get bad memory spam) the next time I had this happen I left it for about 5 minutes and she unstuck herself. But still, it shouldn't be happening.

I got a random error message about one of my simkids' townie friends. I just sent him home (sorry can't attach log because it's on my other PC, will do later.) but I rarely have debug mode on which is why it was unusual, other than the fact he didn't appear to be borked.

Lines in speech bubbles, and the invisible sim in thought bubble bug. (I have heard of this but don't know what causes it apart from moving a sim or family between neighbourhoods or deleting out of the family bin, neither of which I have done)

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Basically, I just want to know if I can back up the neighbourhood and then reinstall the whole game, or if I even need to (I'd rather not because that means finding all the discs.)

[J. M. Pescado]

Using zombie apocalypse, I made a playable into a zombie. When I went to the lot she lived on, she looked like a zombie and made the groaning noises, and had the option to "Eat brains" but she walked like a normal sim.

That's a state-change consistency issue. When a sim suffers a state change on another lot, the sim's state may not fully "reflect" when you return to the lot where it was normal. Give it some time to regain normality.

Basically, I just want to know if I can back up the neighbourhood and then reinstall the whole game, or if I even need to (I'd rather not because that means finding all the discs.)

It is unknown what would cause all those weird errors. Are there any error logs that result?

[simsfreq]

Yes, I just realised if I delete or reset the sim they walk correctly. I'm playing with debug mode consantly on now so if any error logs come up I can post them.