[UIKit Glass Effect] - Opacity change from 0 to 1 does not work

When a UIVisualEffect with glass effect view is added with opacity 0, it remains hidden as expected. But when changing it back to 1 should make it visible, but currently it stays hidden forever. The bug is only reproducible on iOS 26.1 and iOS 26.2. It does not happen on iOS 26.0. The issue is also not reproducible with UIBlurEffect. Only happens for Glass effect

Here is the repro link

You should probably raise this as a bug in the usual way. It won't really get progressed if it's only posted in these Developer Forums.

Raise it at https://feedbackassistant.apple.com/ and provide Xcode version and other relevant info. You should then post the FB number here so Apple devs can link it to this post.

@nishanbende

Thank you for the post and for filing a bug at the same time. Could you please provide the FB number so that I can verify you were that one that file it? I will download your project and examine the behavior of UIVisualEffect.

I appreciate the repository, as it provides a comprehensive project.

Albert Pascual
  Worldwide Developer Relations.

[UIKit Glass Effect] - Opacity change from 0 to 1 does not work
 
 
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