Mandatory packages: LWRP (5.3.1 or earlier) and Vector Graphics (1.0.0 or earlier)
Console warning: Instancing: Use SpriteColor or SpriteFlip for renderers that are not sprite renderers. Values are undefined

To reproduce:
1. Open user's attached project "Test.zip"
2. In Hierarchy window, select the pentagon sprite (drag it around for 100% reproduction)
3. Observe console warnings

Expected: console is not flooded with warnings
Actual: console is throwing warnings infinitely

Reproduced in: 2018.3.7f1, 2019.1.0b4, 2019.2.0a6

Note1: if selecting does not reproduce the issue, try dragging the sprite around the scene
Note2: reproduces on Vector and VectorWeightMap shaders
Note3: cannot be reproduced on LTS as there's no Package Manager