**System Information**
Operating system: Catalina 10.15.7
Processor: 2.9 GHz 6-Core Intel Core i9
Memory: 32 GB 2400 MHz DDR4
Graphics card: Radeon Pro 560X 4 GB, Intel UHD Graphics 630 1536 MB
**Blender Version**
Broken: 2.93
**Short description of error**
Hair doesn't follow emitter when hair dynamics is enabled. Hair dynamics have no settings , keyframe animation, yet hair properties change randomly.
**Exact steps for others to reproduce the error**
Hair on head linked to armature in a walking cycle
{F10164138}
{F10164181}