Mac OSX Yosemite 10.10.5
MacBook Pro (Retina, 15-inch, Late 2013)
Processor 2.6 GHz Quad Intel Core i7
Memory 16 GB 1600MHz DDR3
Details to recreate issue:
Once you try to put 2 automation points on the same grid value the 2 points alway switches positions. Please watch the video I uploaded to see exactly what Im talking about.