The issue has been confirmed to be resolved in iOS 26 Developer Beta 9 (Public Beta 6), so we will consider this matter closed.

I also noticed that when sharing photos or videos directly from Apple’s built-in apps like Photos, the icons for X and Facebook appear properly. So it seems the issue is limited to third-party apps using UIActivityViewController. What’s especially confusing is that my implementation of UIActivityViewController follows the standard pattern — it’s almost textbook code. I haven’t excluded X or Facebook explicitly, and as far as I know, there haven’t been any changes to UIActivityViewController in iOS 26 that would explain this behavior. It’s definitely puzzling.

Thank you for your response. Just to clarify, I actually submitted this issue via Feedback Assistant back in late June, and I haven’t received any response yet. The Feedback ID is FB18367601. Since the issue still persists even in iOS 26 Beta 3, I decided to also post it here on the Developer Forums in hopes of gathering more insights or confirmation from others experiencing the same behavior. I appreciate your suggestion, and I’ll continue to monitor the Feedback Assistant for any updates. Also, thanks for the note about the “formerly Twitter” phrasing — I’ll keep that in mind going forward!

Could you please provide an update on the status of case number FB16430182?

Understood. Thank you for your continued assistance.

Furthermore, the issue was not resolved even with the iPhone 16 series running iOS 18.1.

Furthermore, the issue was not resolved even with the iPhone 16 series running iOS 18.1.

Did you receive any response from Apple regarding this feedback inquiry?

Did you receive any response from Apple regarding this feedback inquiry?