Creating video Cover block in mobile app results in block validation error

[dcalhoun]

Description

Creating a video Cover block within the WordPress mobile app results in block validation errors when re-editing the post.

Step-by-step reproduction instructions

1. Download (or generate) build for the latest WordPress Android.
2. In the Android app, create a post for a Simple WordPress.com site.
3. Add a Cover block.
4. Select a video for the Cover block background.
5. Publish the post.
6. Exit the post editor.
7. Edit the same post in the mobile app OR edit the same post in the web editor.

Expected behaviour

No errors are displayed in the mobile app. No errors are displayed in the web console.

Actual behaviour

A React Native error is displayed regarding block validation. Opening the same post in the web editor displays a block validation error in the console.

Screenshots or screen recording (optional)

Error Screenshots

Web

Android

WordPress information

• WordPress version: WordPress.com
• Gutenberg version: 9.8.4
• Are all plugins except Gutenberg deactivated? Yes
• Are you using a default theme (e.g. Twenty Twenty-One)? No

Device information

• Device: Samsung S20 5G FE
• Operating system: Android 11
• WordPress app version: 86fe5183b1cf12d9854f17de722d1978b443ddc9 of WordPress Android.

[hypest]

Thanks for raising the issue David! Any info whether this leads to a crash of the editor?

[dcalhoun]

@hypest no, from my testing a crash does not occur in a release build.

Release build: The web editor displays a warning in the console.
Debug build: The RN warning is displayed in the mobile app and the web editor displays a warning in the console.