ControllerManager's friction changes with framerate

Bug Reports Engine Bugs
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1

Earlier while testing I noticed a bug in which the player’s character experiences varying levels of friction depending on the framerate of the client. I’m using an R6 rig with the following key characteristics:

  • No Humanoid
  • Every single part is massless
  • Every part except the HumanoidRootPart has collision disabled
  • The character is client owned
  • The GroundSensor is updated manually per-frame by the client
  • The ActiveController is set to nil when airborne; otherwise, the ActiveController is always the GroundController

Video of the issue (Normal friction at 240fps, barely any friction at 60fps):

In the video I am not pressing WASD at all to influence movement. A singular force is applied by modifying the HRP’s Velocity property just once.

Properties

ControllerManager Properties:

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image337×249 3.42 KB

GroundController Properties:

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image260×212 2.88 KB

GroundSensor Properties:

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image277×249 3.26 KB

Expected behavior

Expected Behavior:

Friction is unrelated to client framerate and should be consistent.

2

Thank you for the report. If you could share a place file with a setup that shows this, it would help us debug this faster

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