Grid effect blend modes are broken in After Effects 22.6.0

I stumbled across this bug when opening up an old project in AE 22 where my stacked Grid effects were no longer functioning correctly. 

Version number: 22.6.0

OS: Windows 10 Pro

Also, changing GPU acceleration on/off doesn't change the result.

Steps to reproduce

1. Create a 1920x1080 25fps composition

2. Create a solid that matches comp size

3. Apply Grid effect, set the Size From to Width Slider, set Width to 100, and set Border to 8

4. Change the Grid Blending Mode to None

5. Duplicate the Grid effect and change the Width to 50, and set Border to 4

6. Change the Grid 2 effect Blending Mode to Normal

Expected Behaviour: Both Grid effects should be visible.

Actual Result: 2nd Grid effect completely erases the 1st.

See attached project & screenshots.