4x2 and 4x3 widgets don't render at all

[krid]

The 4x2 and 4x3 widgets are invisible when placed on my home screen. I can get the resize outline to appear, and I can drag the widget to the "Remove" area, but there's no content inside the widget.

The 4x4 widget works fine.

Pixel 4 XL, Android 10, Submuxic 2.9