Operating system: Darwin-19.4.0-x86_64-i386-64bit 64 Bits
Graphics card: AMD Radeon Pro 555 OpenGL Engine ATI Technologies Inc. 4.1 ATI-3.8.14
Broken: version: 2.82 (sub 6), branch: master, commit date: 2020-02-11 14:45, hash: rBc939b4df18e9
Worked: Blender 2.81 before 2.82
Short description of error
With "Only Insert Needed" enabled in the user preferences, adding a key that's not needed causes a "Keying set failed to insert any keyframes" warning
Exact steps for others to reproduce the error
- Open the attached blend file.
- Enable "Only Insert Needed" in User Preferences → Animation.
- Insert a keyframe between the already-existing keyframes.
- See a warning message.
The warning seems to imply something went wrong, even though the Only Insert Needed option did exactly what was expected of it.