Operating system: Linux
Graphics card: GeForce 1050
version: 2.80 (sub 44), branch: blender2.7, commit date: 2019-02-11 23:10,
hash: 036ec5cae4f7, type: Release build date: 2019-02-12, 00:32:25
Short description of error
Weight Painting renders in Green->Black colormap.
RGB = normal red-thru-blue weight colormap.
gb = green-to-black colormap.
Wire Solid LookDev Rendered
Cycles: RGB RGB gb gb
eevee: RGB RGB gb gb
Workbench: RGB RGB --- RGB
The wireframe-mode is too dark to work with.
The "dithered" in all Solid-modes is too light to be useful.
Regarding the 4 combinations labelled "gb" (green-to-black) in the above table:
Sometime when toggling between modes, you can briefly see the rendering pass through the correct RGB colormap (for less than a second), before it is overlaid by the persistent green-to-black rendering.
On a semi-separate issue,
the LMB select mode for Weight-Paint(mesh) + Pose-Mode(armature) is broken / unworkable.
User Prefs » Keymap » Select_With » RIGHT
The original RMB-select workflow still works for Weight-Painting...
but then where to find the Context-Menu?
Exact steps for others to reproduce the error
see attached .blend file.
Note: the Solid rendering appears more usable in these Thumbnails, than it actually is full-sized. View images full-sized to see how pale the colors are.