The following crashes editor:
1) Adding a bokeh texture whilst running editor in GLES
2) Switching editor to GLES whilst a Bokeh texture is assigned

The following crashes player:
1) Running a player with Bokeh enabled in GLES

2. How we can reproduce it using the example you attached

Editor crash:

1) Open attached project and scene "Scene"
2) Assign a Bokeh texture
3) Observe crash

Player crash:

1) Open attached project and scene "Scene"
2) In player settings move GLES down windows API list
3) Assign a Bokeh texture
4) Build player
5) Force player to run in GLES "-force-gles" and observe crash