Operating system: Windows-10-10.0.17134 64 Bits
Graphics card: GeForce GTX 1080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 398.36
Broken: version: 2.80 (sub 71), branch: blender2.7, commit date: 2019-05-20 22:03, hash: rBe78770039397
Short description of error
Effector Collection system is not updating
Exact steps for others to reproduce the error
Please see attached file. It contains a cloth, and a Collection "Effect on" with a Force Filed.
In the physiks panel: "Field Weights" - Effector Collection == "Effect on"
If you move the Force Field, in the outliner, out of the collection "Effect on", the cloth still reacts to the Force Field.