iMac with MacOS 10.13.1
ATI Radeon HD 6970M graphics
Short description of error
When working with particle systems, it is impossible to keyframe the values in the particle settings. They will be marked as keyframed (with coloured text fields), but when you input a new value, it immediately jumps resets to it's old value. Tried this on different Macs, I don't have access to a Windows machine.
Exact steps for others to reproduce the error
In the attached blend file, try to keyframe the rotation of the planes on the sphere with the phase value in the Rotation tab. I am able to insert an initial keyframe, but it is impossible to change the value afterwards, even with the graph editor.