ncaught ReferenceError: can't access lexical declaration 'palette2' before initialization

[gmzacharydovel]

Steps to reproduce

Steps:

1. Build the project with vite
2. Sometimes it will give the error "ReferenceError: can't access lexical declaration 'palette2' before initialization"
3. Removing "@vitejs/plugin-react" sometimes fixes it
4. Totally stops loading the page

Current behavior

No response

Expected behavior

No response

Context

No response

Your environment

npx @mui/envinfo

  Don't forget to mention which browser you used.
  Output from `npx @mui/envinfo` goes here.

Search keywords: palette

[zannager]

Hi @gmzacharydovel, this appears to be a duplicate of #45546, and @Janpot requested for a full reproduction but didn't get an update. I you could share it, please. Thanks.

[gmzacharydovel]

I'll take a look later this week if I can make time. To remove the related stuff

I don't know why, but MUI is extremely buggy in this installation that I inherited.

• Fonts flicker when opening select boxes
• I go this random when running the app as detailed in this bug,
• the datagrid refuses to accept the height of the parent element, so I can't get rid of the warning. Doesn't matter if I explicityly set the height of the parent element
• Loading is just generally slow. But I don't know if that is the fault of React 19, or the optimization of emotion for Firefox. (garbage collection thrashing)

I don't know why MUI is being so buggy with this installation. It just makes it look bad and I know it isn't the normal.

[gmzacharydovel]

Unfortunately can't repro right now. Also, I have a feeling you won't be able to consistently repro as well.

The next time it pops up, I'll see if I can do a cutdown of everything extra.