I offered one bug report about shape key, as [T61904]
https://developer.blender.org/T61904
for 2.8 recent builds.
(I do not remember which version start to cause issue, but 2.7 recent build work without problem, And I have already tried with todays downloaded version from build-bot too)
But I just get reply, developer can not re-produce it. I tried to offer blend. file, movie too. so I really hope to know, if it cause by my PC only or not.
To test it, really simple.
1 load default cube. select cube in 3d view.
2. add one shape key (base) in Properties editor>Object Data > for the cube.
3 check “Apply shape keys in Edit mode” then activate (ON), Relative (ON)
4 go to edit mode, just move vertex or edge (by short cut, or use Transform tool with gizmo)
5 now you must see, float window, in 3d view left-bottom area. open it.
(what is correct name of this property (history) window? I do not know official name, before i just called it as F6 menu of 2.7)
6 change value of X Y Z (move) , blender 2.8 clash immediately.
I do not know, why it only happen to me, Can you all work without problem? no clash?
I offered report already, then I have no way to add more report, just need some other user confirm, or I need to find reason of my PC side.