Constraint objects will not function correctly because Workspace.PGSPhysicsSolverEnabled is false
To replicate, add a Part to your workspace, and then add a constraint into that part, such as a AlignPosition. Then hit Play.
I just want to be sure that I can use the constraints (AlignPosition, AlignOrientation, …) and body movers (BodyGryo, etc), and am not sure if this warning message applies.
[Edited: corrected nomenclature per buildthomas suggestion!]
FYI, body mover objects are the family of BodyGyro, BodyVelocity, etc. Constraints are the family of objects that inherit from Constraint, i.e. AlignPosition, AlignOrientation, etc. AlignPosition and AlignOrientation are not typically referred to as “body mover objects”.
Regardless, it seems the warning is a dud based on the responses in this thread: