How to reproduce:
1. Create a new HDRP project
2. If Vulkan is not the current project Graphics API, go to Player Settings -> Player -> Other Settings and change it to Vulkan
3. Restart the Editor (you could be prompted to restart as you are switching the API)
4. Switch between Shaded and Wireframe Shading modes

Expected result: Shaded and Wireframe modes only differ in how they are rendered
Actual result: In Wireframe mode, all objects are drawed at 0,0,0 position, rotation and scale

Reproducible with: 2019.2.17f1 (HDRP 6.9.0 - preview), 2019.3.0f3, 2020.1.0a16 (HDRP 7.1.6)
Could not test with 2018.4 due to constant error spam (regarding Kernel errors) when opening any HDRP project

Notes:
- To clearly see that nothing in Wireframe mode is changing, modify the 'Example Assets' Game Object's position, rotation or scale