Unable to change widget theme in iPhone SE (old)

I use Drafts in the small iPhone SE that has the same chip as iPhone 6s, so it is running iOS 14.7.1.

I am unable to change the theme color of the widget. I cannot press Cancel to leave Draft widget. Please see the video screenshot below.


Edit: I’ve also tried it with Built-In theme and it’s still the same.

Superficially, it appears you are setting the “light mode” theme for the widget, while your phone is in dark mode - which should not do anything with the theme mode for the widget set to “System”, which changes between light and dark themes selected along with the state of your phone.

Ok, so I changed “System” to “Light” and is able to Choose a light theme. Thanks!