End crystal beams disappear when the player looks up

Regression of MCPE-18444

Summary:
The end crystal beams disappear when the player looks up.

Steps to Reproduce:

1. Create a new world

2. Go to the End

3. Kill the Ender Dragon

4. Place four end crystals on the edges of the exit portal, one on each side

5. Look up

Observed Results:
The end crystal beams disappear.

Expected Results:
The end crystal beams remain visible.

Video: