Bug | Selecting Recent Artboard Size

[godlevi]

I have currently encountered a bug in the latest update of Adobe Illustrator (V29.0.1)
Whenever I create a new document and selecting recent artboard size, it automatically goes back to the first/latest size. It happened not once but multiple times.

On the screenshot, I specifically selected the red one, but after a few seconds, it selects/goes back to the blue one.

[Ton Frederiks]

You may want to report it here:

https://illustrator.uservoice.com/

[Ton Frederiks]

It may also be worth trying to reset the Preferences:

https://helpx.adobe.com/illustrator/using/setting-preferences.html