Description

It seems that cloth simulation doesn't work correctly on 4.20 if Compute Skin Cache is ON.
We can easily repro it with Content Example

[Link Removed]

Is this by design?

Steps to Reproduce
  1. Open ContentExample
  2. Check "Support Compute SkinCache" in Rendering section in Project Settings
  3. Restart
  4. Open Animation map
  5. Simulate or PIE
  6. You can see Owen's cloth isn't simulated.

Have Comments or More Details?

There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-62951 in the post.

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Fixed
ComponentUE - Simulation - Physics - Character
Affects Versions4.20
Target Fix4.21
Fix Commit4437969
Main Commit4450599
Release Commit4437969
CreatedAug 16, 2018
ResolvedOct 8, 2018
UpdatedOct 29, 2018