Custom property does not always seem to be defined in pre frame change handler. Race condition? #63549

New Issue

Hans Baier · 2019-04-13T01:05:15+02:00

Hans Baier commented

2019-04-13 01:05:15 +02:00

System Information
Operating system: Windows 10 Home 64 Bit
Graphics card: NVidia Geforce GTX 1050

Blender Version
Broken:
2.80-009dbc2bc9fb-win64

When playing the animation in the file for some invocations of the pre frame change handler,
the custom property 'CustomProperty' of object 'Cube' does not seem to exist .

Exact steps for others to reproduce the error
Open attached file:
RenderNotAnimatedBug.blend

Make sure the script Handler.py is executed at least once
open the system console
play animation to make sure the custom property of Cube is updated (Cube also changes color according to property).
Note the error messages that on some invocations the custom property does not exist:

File "C:\...\RenderNotAnimatedBug.blend\Handler.py", line 7, in animate_cube
KeyError: 'bpy_struct[key]: key "CustomProperty" not found'

**System Information** Operating system: Windows 10 Home 64 Bit Graphics card: NVidia Geforce GTX 1050 **Blender Version** Broken: 2.80-009dbc2bc9fb-win64 When playing the animation in the file for some invocations of the pre frame change handler, the custom property 'CustomProperty' of object 'Cube' does not seem to exist . **Exact steps for others to reproduce the error** Open attached file: [RenderNotAnimatedBug.blend](https://archive.blender.org/developer/F6937394/RenderNotAnimatedBug.blend) Make sure the script Handler.py is executed at least once open the system console play animation to make sure the custom property of Cube is updated (Cube also changes color according to property). Note the error messages that on some invocations the custom property does not exist: ``` File "C:\...\RenderNotAnimatedBug.blend\Handler.py", line 7, in animate_cube KeyError: 'bpy_struct[key]: key "CustomProperty" not found'

Hans Baier commented

2019-04-13 01:05:15 +02:00

Added subscriber: @hansfbaier