Using Attach To Component and Detach From Component with the Keep World option for the Location/Rotation/Scale rules does not replicate properly to clients. This does work when using AttachToActor and DetachFromActor however.

Regression?: No
This occurred in 4.19

Steps to Reproduce
  1. Download the attached project
  2. Change number of players to 2 for PIE settings
  3. Press play
  4. On the client, approach one of the two cubes under the "Attach to Component - Broken" text and press E when it is in the red sphere component to attach it.
  5. Move some and then press E again to detach it.
    Result: The cube disappears for the client but is placed in the correct spot for the Server
    Expected: The server and client see the cube in the same spot.

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Affects Versions4.194.204.21
Target Fix4.22
Fix Commit4708102
Main Commit4804559
Release Commit4862694
CreatedAug 23, 2018
ResolvedJan 11, 2019
UpdatedFeb 12, 2019