Screen glitches for a split second after opening and exiting a menu with the new UI option enabled

Thank you for your report!

However, we could not reproduce the issue. Could you please let us know whether the issue still occurs on the latest versions?

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This issue seems to be reproduced at MCPE-189262 which is reported as affecting the 1.21.51 Hotfix.

It Still is Here but it Seems to Happen very less Likely in The Newer Preview Version (1.21.60.24) them in 1.21.50.28/29

Thank you for your report!

We’ve been looking into the issue but haven’t been able to reproduce it on our end.
Could you let us know if you’re still experiencing the problem?

If so, any additional details about your setup or steps to reproduce would be super helpful. Thanks!

This is also question to other users experiencing the same problem so if you have any additional information how to reproduce/what's impacted the bug, please let us know!

From my testing, I've only been able to reproduce this in 1.21.51 and doesn't appear to be an ongoing issue in the latest preview/beta as far as I can tell. 
To reproduce this:

1. Click the "Profile" button on the menu screen.

2. Pres the ESC button or click the arrow button to go back to the main menu.

This is still an issue in 1.21.100

1.21.101Can be reproduced