Pushing Changes during a session results in certain props and building pieces disappearing

Summary

During a UEFN session, certain props and walls may disappear including player placed objects and specific wall pieces (balcony pieces / borders). This issue excludes prefabs as they are unaffected.

This issue has been occurring for a while on multiple different projects.

Screenshot shows a specific build piece as an example from the Brawlers Battlegrounds gallery.

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

World Building

Steps to Reproduce

  1. Build an area using some of the balcony pieces along with some props.
  2. Push Changes
  3. Check the area again in-game.

Expected Result

The changes are pushed successfully and all props from beforehand remain in place.

Observed Result

Some of the props disappear including some building pieces when pushing changes.

Platform(s)

Xbox Series S

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Additional Notes

This issue does not happen all the time and not all props disappear.
Changing revision control settings sometimes fixes the issue temporarily.

One workaround is to restart the session instead of pushing changes.