[LoadingButton] Displaying incorrect warning

[songhobby]

Current behavior 😯

<LoadingButton loadingPosition="start" .. .>...

This would prompt a warning

Warning: Failed prop type: MUI: The loadingPosition="start" should be used in combination with startIcon.'

However, the default loadingIndicator is used and a startIcon is not necessary here

Expected behavior 🤔

No warning

Steps to reproduce 🕹

No response

Context 🔦

No response

Your environment 🌎

No response

[andrebnassis]

Here there is a repository with a LoadingButton sample that you can reproduce the warning message:
https://github.com/andrebnassis/my-lab/tree/issue/mui/31365

[shkhalid]

+1

[nishina-y]

+1

[buzzb0x]

Hi there, any updates on this? Has this been fixed already? I'm on @mui/[email protected] and the warning is still present

[CorentinR3]

+1

[baki-kucukcakiroglu]

+1. I can confirm this issue still exists at "@mui/lab": "^5.0.0-alpha.142".

[ZeeshanTamboli]

It works well in Joy UI without any warning. See - https://mui.com/joy-ui/react-button/#loading-position.

[mmoreno2-rbi]

+1

[andrew-amp]

+1

[woigl]

+1

[simarmannsingh]

+1. Still getting a warning for @mui/lab": "^5.0.0-alpha.170".

[dil-anunez]

I can confirm this in "@mui/lab": "5.0.0-alpha.170" and "@mui/material": "^5.14.17",

[CorentinR3]

+1

[jfaMan]

+1 with "@mui/lab": "^5.0.0-alpha.69"

[triglian]

Hello, also experiencing this, any plans to fix it?

[ZeeshanTamboli]

We're moving the loading feature to the Material UI Button in #42987. The warning won’t be added there.

[github-actions]

This issue has been closed. If you have a similar problem but not exactly the same, please open a new issue.
Now, if you have additional information related to this issue or things that could help future readers, feel free to leave a comment.

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