Operating system: Windows-10-10.0.18362 64 Bits
Graphics card: GeForce RTX 2080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 431.86
Broken: versions 2.79 & 2.81 (sub 16), branch: master, commit date: 2019-11-20 14:27, hash: rB26bd5ebd42e3
Short description of error
Render with F12, save the rendered image with 'Copy' turned off, and render again. This makes (parts of) Blender unresponsive.
Exact steps for others to reproduce the error
- Render the default cube.
- Image - Save as, and uncheck Copy in the options.
- Click Save as image.
- Re-render the image.
- Press ⎋ to close the render window (it doesn't).
- Press F12 to re-render (it doesn't).
Strangely enough some parts of Blender are still responsive. For example ⇧+F12 still switches to the timeline.