Operating system: Windows-10-10.0.17763 64 Bits
Graphics card: GeForce GTX 1070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 388.13
Broken: version: 2.80 (sub 74), branch: master, commit date: 2019-07-11 13:50, hash: rB06312c6d2db8
Short description of error
if you worked in dynamic paint, and used weight mode, you will feel bothered, nothing will show in viewport. in 2.79x, you can preview the weight color, and easy used in modifier.
Exact steps for others to reproduce the error
Just download my .blend file, and play animation with space bar.
[Please describe the exact steps needed to reproduce the issue]
[Based on the default startup or an attached .blend file (as simple as possible)]