Copying and pasting an array of nested instanced subobjects from a level instance into a Blueprint's defaults and adding that Blueprint to the level will prevent the actor instance from saving.

Steps to Reproduce
  • Open attached project (Built at CL#23115094 Release-5.1)
  • drag an instance of /Game/B_AddMeToLevel into the level
  • Save the level
  • Note the error "Can't save ExternalActors/NewMap/*.uasset: Graph is linked to external private object */Game/B_AddMeToLevel.Default_B_AddMeToLevel_C:MyParentObject_1 (Referenced because it is an archetype object)"

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ComponentUE - Gameplay - Blueprint Editor
Affects Versions5.1
Target Fix5.5
CreatedNov 17, 2022
UpdatedFeb 13, 2024
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