Baking Fluid simulations via API broken [2] #90051

New Issue

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: GeForce RTX 2070 SUPER/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 456.71

Blender Version
Broken: version: 2.93.0, branch: master, commit date: 2021-06-02 11:21, hash: 84da05a8b8
Broken: version: 3.0.0 Alpha, branch: master, commit date: 2021-07-21 18:41, hash: 64bb49fa4e
Worked: (newest version of Blender that worked as expected)

Short description of error
blender is unable to bake fluid simulations via api.

Exact steps for others to reproduce the error

I have uploaded a script which produces this error. If you run this script (baking should take about 20 seconds) and then try to play the animation you will see the 'SystemError: PyEval_EvalCodeEx: NULL globals' error. If you attempt to run it again blender, after attempting to view the animation, blender will crash.

I want to confirm that this is NOT a problem with file naming.

The behavior is identical for both 2.93 and the latest 3.0 release.

There is an original submission here: https://developer.blender.org/T90031

Thanks again!
Nathan

fluid_test.py

**System Information** Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: GeForce RTX 2070 SUPER/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 456.71 **Blender Version** Broken: version: 2.93.0, branch: master, commit date: 2021-06-02 11:21, hash: `84da05a8b8` Broken: version: 3.0.0 Alpha, branch: master, commit date: 2021-07-21 18:41, hash: `64bb49fa4e` Worked: (newest version of Blender that worked as expected) **Short description of error** blender is unable to bake fluid simulations via api. **Exact steps for others to reproduce the error** I have uploaded a script which produces this error. If you run this script (baking should take about 20 seconds) and then try to play the animation you will see the 'SystemError: PyEval_EvalCodeEx: NULL globals' error. If you attempt to run it again blender, after attempting to view the animation, blender will crash. I want to confirm that this is NOT a problem with file naming. The behavior is identical for both 2.93 and the latest 3.0 release. There is an original submission here: https://developer.blender.org/T90031 Thanks again! Nathan [fluid_test.py](https://archive.blender.org/developer/F10233916/fluid_test.py)

Added subscriber: @nkundtz

Added subscriber: @PratikPB2123

Changed status from 'Needs Triage' to: 'Confirmed'

Can confirm the crash.

Added subscriber: @dfelinto

Thanks for the report. Marking this as known issue since it depends on the old particle settings which is end of life .

Thanks for the report. Marking this as known issue since it depends on the [old particle settings which is end of life ](https://developer.blender.org/tag/nodes_physics/).

Added subscriber: @SonnyCampbell_Unity

Changed status from 'Confirmed' to: 'Resolved'

Was able to recreate this and can confirm it is resolved in master by the same fix as https://developer.blender.org/T98427

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Baking Fluid simulations via API broken [2] #90051