System Information
Operating system: Windows-10-10.0.17134 64 Bits
Graphics card: GeForce GTX 950M/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 436.48
Blender Version
Broken: version: 2.81 (sub 13), branch: master, commit date: 2019-10-03 21:03, hash: rBfbc096cf075b
Short description of error
X-Angle-Limit values for Rigid-Body Constraint objects reset when animation is played.
Exact steps for others to reproduce the error
Open the included .blend.
Select either of the two objects named "Constraint.Bug."
Change the value for the X Upper/Lower angle limits on the Rigid-Body Constraint to anything other than 0.
Play animation. The value for the X Upper/Lower angle limit will immediately reset to 0.