Android - Dynamic Updates to CollectionView Header/Footer and Templates Are Not Displayed

[prakashKannanSf3972]

Description

• An unintended synchronization exists between the GroupHeaderTemplate / GroupFooterTemplate and the Header / Footer views in .NET MAUI CollectionView. When setting a header or footer template, the corresponding header or footer view is also updated unexpectedly, and vice versa.
• The CollectionView fails to reflect dynamically updated Header, Footer, or their templates when modified at runtime. As a result, newly assigned headers, footers, or templates do not render correctly, leading to missing UI elements.

Actual Issue in Android

AndroidIssue.mov

Expected

iOSCV1Expected.mov

Steps to Reproduce

• Launch the Application on Android - GroupingSample.zip
• Notice the issue based on the shared video reference.

Link to public reproduction project repository

No response

Version with bug

9.0.50 SR5

Is this a regression from previous behavior?

Not sure, did not test other versions

Last version that worked well

Unknown/Other

Affected platforms

Android

Affected platform versions

Android

Did you find any workaround?

No response

Relevant log output

[similar-issues-ai]

We've found some similar issues:

• Header/Footer Template and View Synchronization Issue in .NET MAUI CollectionView (CV2) #28504 , similarity score: 84%
• [Android] Header and Footer Not Visible in CollectionView When EmptyView is Selected First #28351 , similarity score: 82%

If any of the above are duplicates, please consider closing this issue out and adding additional context in the original issue.

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