When simulating in Editor, the Skeletal Mesh bone locations are not being passed into simulate if the simulation is being toggled the same frame when the Mesh is being set on a Skeletal Mesh component.

This was reported and tested in 4.20.3 (CL-4369336). This was reproduced in 4.19.2 (CL-4033788), 4.21 (CL-4516095), and Main 4.22 (CL-4531805)

Steps to Reproduce
  1. Download the linked project ([Link Removed])
  2. Navigate the camera to display 1.2
  3. Press Simulate and notice the position of the spawned mesh
  4. Enter the "pause" console command and notice the new position

Results: Mesh's bones won't be updated with the correct locations and will have strange locations for one frame right after it is first rendered to the screen

Expected: Mesh's bones locations are being correctly refreshed before simulating physics and rendering to the screen

Have Comments or More Details?

There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-66147 in the post.

Login to Vote

Cannot Reproduce
ComponentUE - Simulation - Physics
Affects Versions4.
Target Fix4.26
CreatedNov 5, 2018
ResolvedJul 14, 2020
UpdatedJul 16, 2020
View Jira Issue