How to reproduce:
1. Open the originally attached project ('LWRPTest.zip')
2. Double click Paint1G_WAnim_Shader to open the shader graph.
3. Drag the shader graph to dock next to the scene and game tabs.
-- Observe the crash

Reproducible with: 2019.2.0a8, 2019.2.0a11
Not reproducible with: 2019.2.0a7
Pre-2019.2 does not have the Paint1G_WAnim_Shader file in a new LWRP project.

First three stack trace lines:
#0 0x007f8fdb54c7a8 in _nv042glcore
#1 0x00561efa1a28b0 in vk::DescriptorState::Bind(VkDevice_T, vk::CommandBuffer, vk::GpuProgramBase&)
#2 0x00561efa17cce1 in GfxDeviceVKBase::DrawBuffersInternal(VkBuffer_T, unsigned long, unsigned int, VkBuffer_T const, unsigned int const, unsigned long const, int, DrawBuffersRange const, int, VertexDeclaration*, unsigned int)

Note: Cannot drag Shader Graph window due to another issue in 2019.2.0a6 and 2019.2.0a7, however it crashes with the same stack trace on closing the editor on 2019.2.0a6.
Note2: Works with a new LWRP project.