Changes in an applied physical material are not automatically picked up by the PHAT mass properties display. A manual refresh is required for the display to update to the correct values.


Adjusting a body's COM offset does not effect the location of the drawn PHAT mass properties display.

Steps to Reproduce

Open a skeletal mesh in PHAT.

In the view-port under Character options, enable Mass Properties.

Adjust a body's Center of Mass Offset, notice how the displayed location of its mass property doesn't change.


Apply a physical material to a body. 

Adjust the material's Density or Raise Mass to Power.

Notice how the mass property does not change.

Refresh the properties by Enabling and Disabling the body's MassInKg.

Notice how the mass property has changed.

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Won't Fix
ComponentUE - Simulation - Physics
Affects Versions4.23
CreatedOct 17, 2019
ResolvedAug 27, 2021
UpdatedAug 27, 2021
View Jira Issue