(Bug occured on two systems with two Blender 2.8 versions.)
Operating system: (1) Arch Linux, (2) Windows 10
Graphics card: (1)Rx 580, (2) GTX 1050 mobile
Broken: (1) 2.8 81a7f6c84844, (2) 2.8 90f6fd0a3651
Worked: 2.79b 2c0c1f494dcf
If you want to animate something, that requres multiple values to be keyed simultaniousely, you will run into issues with keyframe values being reset.
How to reproduce
- select Deafult Cube
- set a keyframe to Rotation and Translation
- go to another spot in timeline
- change Rotation and Translation of Cube
- Set a second keyframe to Translation. Now the changes to rotation will have disappeared.