SLua: Scripts folder sometimes not appearing in Inventory

[AtlasLinden]

Environment

Second Life Project lua editor 7.1.12.14175675593 (64bit)

Description

This had occurred a couple times when logging into the Slua enabled regions on Aditi but it has now reproduced on production while using the Slua Editor viewer.
Even selecting to create a new Script via Inventory does not show the Scripts folder.
Relogging into the same grid appears to resolve it. It's possible this issue only occurs upon a new Slua Editor viewer install.

Video of attempting to create a script:
https://github.com/user-attachments/assets/f7e06db4-2c11-466e-8a91-b923bdb3991b

Image of Inventory upon relog:

Reproduction steps

1. Install a Slua Editor viewer. E.g. https://github.com/secondlife/viewer/releases/tag/Second_Life_Project_Lua_Editor%2357dfeaf
2. Login and look for Scripts folder
3. Also attempt to create a Script in Inventory

[marchcat]

This issue is likely caused by the workaround code from #3731.
A proper fix should involve removing the workaround and implementing the default scripts on the server side.

[canny]

This issue has been linked to a Canny post: Inventory can't be changed 🎉

[AtlasLinden]

A user has reported this also occurring for newly created Notecards on Mac. See the above linked Canny.
I was able to reproduce this on 7.1.12.14254998273 but only during the first session.

Update: User is still hitting this issue after relogging.

[marchcat]

The workaround shouldn't have affected the notecards.
Let's retest after reverting it.

[AtlasLinden]

I am no longer reproducing the missing Scripts folder in 7.1.12.14888088240.
This Inventory issue however appears to be more widespread than just notecards alone and reproduces consistently on Aditi on MacOS. A new issue has been created for this here: #4050

[canny]

This issue has been unlinked from a Canny post: Inventory can't be changed 😢