Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce GTX 980/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 426.00
Broken: version: 2.90 (sub 0), branch: HEAD (modified), commit date: 2020-04-30 04:21, hash: rB66e70fe299e1
Short description of error
Animating a procedural texture (i.e. cloud) does not influence particle system over time.
Exact steps for others to reproduce the error
Open attached blend file, play animation.
The texture size is animated using keyframes, however hair particles lenght do not change over time, it remains fix.