Operating system: Windows-7-6.1.7601-SP1 64 Bits
Graphics card: AMD Radeon HD 7560D ATI Technologies Inc. 4.5.13399 Core Profile Context 15.200.1062.1004
Broken: version: 2.81 (sub 16), branch: master, commit date: 2019-12-04 11:32, hash: rBf1aa4d18d49d
Short description of error
Particles are not loaded into the scene from the external cache.
The number of particles is less than it should be.
Exact steps for others to reproduce the error
create an empty scene
save the blend file
open and run the script that I attached