Editor preview does not respect Button width while published app renders correctly

[Wojtek-G]

Can we access your project?

• I give permission for members of the FlutterFlow team to access and test my project for the sole purpose of investigating this issue.

Current Behavior

In the FlutterFlow editor, the button width defined in the properties panel is not respected in the visual editor preview. The button width is set to 40px, but the editor renders the button significantly wider. When the project is run or published, the button renders correctly with the expected width.

Expected Behavior

The Editor Preview should render the button at exactly 40px width, matching the configured value and the runtime output.

Steps to Reproduce

1. Create a new FlutterFlow project (also occurs in existing projects).
2. Add a Button widget to the page.
3. In Button Default Style, set:
   • Width: 40 px
   • Height: 40 px
4. Observe the button size in the Editor Preview.

Reproducible from Blank

• The steps to reproduce above start from a blank project.

Bug Report Code (Required)

IT40iMjfsYtNocNG1pSJcMdVryg5JWZ7a5IZiepraCosfZT2BLMcec/RVERVZ/24TFZEI2KJnWoW0M7wkoXiGPY5FwiAfqZHyc1AVDnyUkaWVaauFJWgQkZTO8JQfxWx356rgR4mJbBfSF4AwFOYN+TIcBDBNZDJOTMeDq/LZO4=

Visual documentation

Environment

- FlutterFlow version:  v6.5.43 (released March 6, 2026)
- Platform: macOS
- Browser name and version: macOS Desktop App
- Operating system and version affected: All.

Additional Information

No response

[Juansarmi]

Hello!

Thank you for your report. I was able to reproduce the error and will be forwarding it to our engineering team for further investigation. I’ll let you know as soon as I have any updates.