Steps to reproduce:
1. Download the attached project
2. Open "SampleScene" scene
3. Enter paly mode

Expected results: Depth Of Field is rendered correctly
Actual results: Depth Of Field with Single Pass Instanced rendering mode render left eyes almost black and on the right eye, Depth field doesn't have any effect. Reproducible with Boken and Gaussian modes.

Reproduced with: 2020.1.0a6 (7.1.2), 20.19.3.0b5 (7.1.2)

Note:
- With URP 7.1.1 both eyes render white when using Depth of Field and gaussian mode. Bokeh mode works correctly with URP 7.1.1