Description

Increasing the Capsule Half Height size of a Capsule Component of a Character class in a multiplayer game results in other clients getting inaccurate (jittery) collision when colliding against meshes with convex or box collision. (See attached image)

Regression: No

Steps to Reproduce
  1. Open linked project [Link Removed]
  2. Note that in the Character Blueprint, Capsule size has been increased to 170 and the character positioned at the bottom of the capsule
  3. Start a multiplayer game with 2 clients in Standalone Game Mode
  4. Position windows side by side so you can observe the character you are moving in both windows simultaneously.
  5. Move character so that it pushes against the corner of the 1M_Cube_Chamfer
    RESULT: Same character in the second window will jitter and ultimately float in the air if the character is positioned just right in the first window
    EXPECTED: The same collision reaction in both client windows.
Callstack

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Fixed
ComponentUE - Simulation - Physics
Affects Versions4.14
Target Fix4.16
Fix Commit3373624
Main Commit3380073
CreatedJan 10, 2017
ResolvedMar 31, 2017
UpdatedApr 27, 2018
View Jira Issue