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Mantaflow + Cycles timeline scrubbing crash
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Description

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: GeForce GTX 1080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 442.50

Blender Version
Broken: version: 2.83 (sub 5), branch: master, commit date: 2020-02-28 16:45, hash: rB85f980c517e4
Worked: (optional)

Short description of error
When simulating mantaflow gas and using cycles preview, Blender instantly crashes when I try to scrub through the timeline. Bug happens on two separate computers (geforce 970, also windows 10) on factory defaults. On both CPU and GPU preview. The crash doesn't happen when there's no material assigned or it's anything other than principled volume.

Exact steps for others to reproduce the error

  1. Set up a basic smoke simulation
  2. Set the material to principled volume
  3. Preview it in cycles
  4. Try scrubbing through timeline

Event Timeline

Ankit Meel (ankitm) changed the task status from Needs Triage to Needs Information from User.Mar 1 2020, 6:18 AM

Please add the blend file too

of course you have to bake the simulation first to make it crashable

Ankit Meel (ankitm) changed the task status from Needs Information from User to Confirmed.Mar 1 2020, 3:09 PM

Assertion failed: (i < datasize_), function operator[], file intern/cycles/render/../util/util_array.h, line 212.
It won't crash if you play the animation for even 1 or 2 seconds, before scrubbing.

@Ankit Meel (ankitm) when you confirm a bug report, make sure it always has the relevant module project assigned.