Not a major bug, but the icon texture shows a 2d spyglass pressed against the left side of the icon boundaries.
Related issues
Attachments
Comments

Possibly a duplicate ofย MC-181280.

Please attach a screenshot of this occurring while the F3 debug screen is enabled.
This issue is being temporarily closed as Awaiting Response. Once the requested information has been delivered, the report will be reopened automatically.
Quick Links:
๐ Bug Tracker Guidelines โ ๐ฌ Community Support โ ๐ง Mojang Support
๐ Project Summary โ โ๏ธ Feedback and Suggestions โ ๐ Game Wiki

I just revisited the bug and it seems to be fine, showing the expected 3D icon correctly. Feel free to label this issue as resolved.