Changing modloader causing the instance to be wiped of everything

• [ YES] I searched the issue tracker for other issues covering my case
• [ YES] This is a Launcher issue. (Usually if you can reproduce it with a fresh instance)

Describe the bug
A clear and concise description of what the bug is.

Changing modloader causing the instance's data to be wiped

To Reproduce
Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Install an old version of "New Simple Mods" pack from curseforge.
Change the neoforge version.
Lose every data.

Expected behavior
A clear and concise description of what you expected to happen.

To keep my mods, shaderpacks, texturepacks, configs, etc

Possible solutions
Some ideas of how you would solve this issue, if possible

not wiping the data after changing the instance's modloader version.

Screenshots
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before changing modloader version

after changing modloader version

Operating System:

• OS: [e.g. Windows 10]
• Launcher Version: [e.g. v1.1.10]
• Java Version: [e.g. 8/16]
• Minecraft Version: [e.g. 1.16.5]
• Mod Loader: [e.g. Forge/Fabric]

windows version: 10
launcher version: 2.0.24
java version: 21
minecraft version: 1.21.7
mod loader: neoforge

Additional context
Add any other context about the problem here.