Vibrant Visuals: Flat cross models cannot cast shadows onto pixels directly below them

I am not using any add-ons or resource packs

Relates to MCPE-199296

Flat cross models cannot reliably cast shadows directly underneath themselves, resulting in areas that should logically be shaded being left out

Reproduction Steps:
- Place down a cross modeled block such as pointed dripstone or flowers
- Set time to 10000 to make the light shine an at angle

Observed Results:
- Shadows do not appear directly underneath pixels

Expected Results:
- Shadows would appear there as sunlight doesn’t have a path to reach

I’m attaching screenshots to aid in my explanation. I highlighted the areas that aren’t shaded but should be, with red borders.