Linux 64-bit, AMD Cape Verde card
2.80alpha2 2018-10-30 official binaries
Short description of error
keyframed text properties do not update viewport. One has to go into edit mode and back to refresh.
Exact steps for others to reproduce the error
Create a text object, keyframe character spacing at frame 1.
Move a couple of frames forward, set character spacing to 2, see the viewport update. set keyframe on the spacing property.
Scrub timeline. text does not update based on the interpolated value.
Tab into editing, text updates.
Some properties don't even update the values in the property panel.