How to reproduce:
1. Create a new Unity project
2. Download the Lightweight Render Pipeline Package
3. Download and import the attached package(sprite_cube_sort)
4. Make sure that the Render Pipeline is set to Lightweight Render Pipeline
5. Open the scene sprite_sort and observe the sprite from different angles

Expected result: sprite is rendered in front of the transparent cube from specific angles
Actual result: sprite is always rendered behind the transparent cube

Reproducible with Unity versions: 2019.1.0f2, 2019.2.0a13
Not reproducible with Unity versions: 2018.3.14f1
Could not test with: 2017.4.26f1(LWRP package not available)

Reproducible with package versions: 5.3.1, 6.5.3
Not reproducible with package versions: 4.10.0, 5.2.3