"Push Change" deleting props

[AHAD_I]

Summary

When ever the changes are pushed into Fortnite game session a lot of my props gets deleted. The Fortnite game session isn’t affected until i start and End game. The deleted props are nearly always the same the only way to get the props back is if i have a backup in revision control. Plz help i have replaced the props twice and seeing the bug really demotivbated me from continuing having fun building maps.

Please select what you are reporting on:

Creative

What Type of Bug are you experiencing?

Assets

Steps to Reproduce

Place a Prebuild or self build building (Put some devices like triggers and sequencers beneath the map) and push changes.

Expected Result

A lot of props and the trims that go in the corners and on top of the building would be deleted.

Observed Result

The deleted props are always the same.

Platform(s)

windows

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Additional Notes

I have devices underneath the map and when i saw this problem for the first time i had the UEFN session on for a long time like 5 to 6 hours as it takes a long time for UEFN to restart i sometimes leave the session on never had a problem until now.

[AHAD_I]

To make it easier to understand here is a log error: While trying to load package /JunoGame/Effects/CharacterFX/NS_Juno_Buff_Light, a dependent package /Game/Effects/Nigara/Modules/ComponentRender/FN_Gen5_Light was not available. Addiltional explanatory information follows: FPackageName: Skipped package /Game/Effects/Niagara/Modules/ComponentRenderer/FN_Gen5_Lighthas a valid, mounted, mount point does not exist on disk either on disk or instore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/Niagara/Modules/ComponentRenderer/FN_Gen5_Light ’ . Perhaps it has been deleted or was not synced?
I looked at this location and There was no Effects folder in Content Folder. And there are alot other logs but most redirect toward D:/Fortnite/FortniteGame/Content/Effects.