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Animation Rotation key-frame issue.
Open, Needs Triage by DeveloperPublic

Description

It seems that Blender is not correctly recording linear axis rotations values (animation /key-frames).
Example video with the problem in attach.
I'm using last official Blender V2.8 downloaded from the site.
Many thanks.

Details

Type
Bug

Event Timeline

I can't reproduce it. Could you please upload your system info:


and a simple .blend file.

Jacques Lucke (JacquesLucke) lowered the priority of this task from Needs Triage by Developer to Needs Information from User.Sep 18 2019, 12:22 PM

Also cannot reproduce the issue with a simple plane.

I'm using last official Blender V2.8 downloaded from the site.

No idea what is "the site". Please try the latest build from https://builder.blender.org/download/.

Hello,

Many thanks for your time.
I just uploaded the requested files (in attach).

Since you could not reproduce the problem, I decided to test the issue with the default "Blender cube" mesh.
No problem with the Blender default cube mesh.

Yet, the mesh I'm using is an imported FBX object.
It was necessary to redefine the objects axis and re-parent them to the correct hierarchy (parent /child) for the intended animation to work.
Maybe the problem is related with this FBX import method?

No idea what is "the site".

I'm sorry if I was not clear enough.
The site is the Blender "site": https://www.blender.org/

Jacques Lucke (JacquesLucke) raised the priority of this task from Needs Information from User to Needs Triage by Developer.Sep 18 2019, 5:39 PM

Hello all,

I imported again the FBX object to Blender.
Here (in attach) you have a scene with the full object hierarchy already parented in Blender, (since the FXB import loses all previous parent/child hierarchy coming from the Software used to model the mesh, in this case Lightwave).

If one tries to rotate and key frame animate the Helix mesh (like in the initial video example I uploaded), it replicates the problem.
Hope this helps to solve the mystery.
Maybe I'm doing something wrong regarding the import or parenting workflow, but I can't see what.

NOTE: I'm new to Blender.