System Information
Operating system: Windows-10-10.0.17134 64 Bits
Graphics card: Intel(R) HD Graphics 5500 Intel 4.4.0 - Build 20.19.15.4963
Blender Version
Broken: version: 2.80 (sub 64), branch: master, commit date: 2019-05-15 23:47, hash: rB02a7e57d9c07
Short description of error
Sculpting while using multires will cause smoothing artifacts after subdividing.
Exact steps for others to reproduce the error
Factory settings > Add a mesh > Add multires modifier > Add subdivision to multires > Sculptmode > Sculpt with any brush > Subdivide.
A video demonstrating the steps. Also changing the quality slider:
https://youtu.be/RxyFWu535wc
0:00-0:27 Main issue.
0:36 Demonstrating the Quality slider at lvl 6
0:55 Demonstrating the Quality slider at lvl 1
Sorry, I don't know how to embed videos properly.