Steps to repro:
1. Download the attached project from the link in the comment;
2. Open 'AVP6_Desktop' scene;
3. In the Lighting window press 'Generate Lighting' button

Expected result:
The scene is baked successfully.

Actual result:
Editor crashes (see attached video).

Last calls from the stacktrace:
[PathTracer] Added a GBuffer with hash: f489ad3978fbd24e34a1da36ace5f8c4, width: 1024, height: 1024, supersampling multiplier: 2, took 2.77 secs (not cached) -> Timestamps: [453.919 - 456.684]
0x00007FF7D3AE112E (Unity) RadeonRaysMeshManager::StorePerInstanceMaterialAndTransmissionData
0x00007FF7D3AE15AE (Unity) RadeonRaysMeshManager::StoreToGPU
0x00007FF7D3AC8690 (Unity) RadeonRaysBakeLightmapTechnique::AttachHeavyDataPointers
0x00007FF7D3A84EBB (Unity) BakeJobInitializeLightmapData::Execute
0x00007FF7D3A4ADB4 (Unity) BakeContextManager::UpdateFunction
0x00007FF7D2A45D8E (Unity) JobQueue::Exec
0x00007FF7D2A4C4AB (Unity) JobQueue::Steal
0x00007FF7D2A46503 (Unity) JobQueue::ExecuteJobFromQueue
0x00007FF7D2A4806D (Unity) JobQueue::ProcessJobs
0x00007FF7D2A4CEE8 (Unity) JobQueue::WorkLoop
0x00007FF7D2F58CA7 (Unity) Thread::RunThreadWrapper
0x00007FF858E83034 (KERNEL32) BaseThreadInitThunk
0x00007FF859C41471 (ntdll) RtlUserThreadStart

Notes:
- Reproducible in 2019.2.0a7;
- Not reproducible in 2018.3.8f1, 2019.1.0b6;
- Reproducible on Windows 10 with NVIDIA GeForce GTX 1070 GPU;
- The crash is reproducible when baking with and without View Prioritization.