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Copy Location Constraint has bug with parent (after rotated).
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Description

System Information
win10 64bit

Blender Version
Broken: 2.79b
Worked: not sure

Short description of error
Copy Location Constraint has bug with parent (after rotated).

Exact steps for others to reproduce the error
After rotating The animation looks bad (wrong direction). Maybe need to multiple parent maxtrix?
Thanks!
Best Regards!

GIF

blend file

Details

Type
Bug

Event Timeline

Hi! Aligorith! Hope you have time to join this session. Thanks!

This is not a valid set-up, it generates some dependency cycles, even in 2.8’s new depsgraph:

'OBCube.001.TRANSFORM_CONSTRAINTS()' depends on 'OBEmpty.TRANSFORM_FINAL()' through 'Copy Location'
'OBEmpty.TRANSFORM_FINAL()' depends on 'OBEmpty.TRANSFORM_OBJECT_UBEREVAL()' through 'Temp Ubereval'
'OBEmpty.TRANSFORM_OBJECT_UBEREVAL()' depends on 'OBEmpty.TRANSFORM_PARENT()' through 'Temp Ubereval'
'OBEmpty.TRANSFORM_PARENT()' depends on 'OBEmpty.TRANSFORM_LOCAL()' through 'ObLocal -> ObParent'
'OBEmpty.TRANSFORM_LOCAL()' depends on 'OBCube.TRANSFORM_FINAL()' through 'Parent'
'OBCube.TRANSFORM_FINAL()' depends on 'OBCube.TRANSFORM_CONSTRAINTS()' through 'ObConstraints -> Done'
'OBCube.TRANSFORM_CONSTRAINTS()' depends on 'OBCube.001.TRANSFORM_FINAL()' through 'Track To'
'OBCube.001.TRANSFORM_FINAL()' depends on 'OBCube.001.TRANSFORM_CONSTRAINTS()' through 'ObConstraints -> Done'