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NLA Bake action broken for bone following path
Closed, ResolvedPublicKNOWN ISSUE

Description

System Information
Operating system: Linux
Graphics card: GTX 1060

Blender Version
Broken: 2.80, 54ffc4e19dc4, 2019-02-25

Short description of error
Bake action failed for a bone animated with a follow path contraint with keyframes on the offset

Error is :

Traceback (most recent call last):

File "<blender_console>", line 1, in <module>
File "/opt/bin/blender-2.80-54ffc4e19dc4-linux-glibc224-x86_64/2.80/scripts/modules/bpy/ops.py", line 200, in __call__
  ret = op_call(self.idname_py(), None, kw)

RuntimeError: Error: Traceback (most recent call last):

File "/opt/bin/blender-2.80-54ffc4e19dc4-linux-glibc224-x86_64/2.80/scripts/startup/bl_operators/anim.py", line 279, in execute
  do_clean=True,
File "/opt/bin/blender-2.80-54ffc4e19dc4-linux-glibc224-x86_64/2.80/scripts/modules/bpy_extras/anim_utils.py", line 77, in bake_action_objects
  iter.send(None)
File "/opt/bin/blender-2.80-54ffc4e19dc4-linux-glibc224-x86_64/2.80/scripts/modules/bpy_extras/anim_utils.py", line 101, in bake_action_objects_iter
  iter.send(None)
File "/opt/bin/blender-2.80-54ffc4e19dc4-linux-glibc224-x86_64/2.80/scripts/modules/bpy_extras/anim_utils.py", line 213, in bake_action_iter
  raise Exception("Pose and object baking is disabled, no action needed")

Exception: Pose and object baking is disabled, no action needed

Exact steps for others to reproduce the error

I setup a scene with a single bone with a follow path along a bezier curve to animate it. The bug can be reproduce by calling directly the operator from a python script.

  • Open the attached file
  • Run the script

Event Timeline

Sebastian Parborg (zeddb) lowered the priority of this task from 90 to 50.
Richard Antalik (ISS) changed the subtype of this task from "Report" to "Known Issue".

Note, this issue also happened when running bake from the menu.