Duplicated Level Disallowed

so i duplicated my level in uefn and when i tried to launch session of the duplicated level i got disallowed errors and it seems like the disallowed things were the player spawners and the checkpoint/race device

it’s weird

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What way did you duplicate your level ?

copy paste ctrl c ctrl v

from Windows file explorer or via outliner ?

via the content drawer

Ah OK, I won’t try it that way then,
I did managed to successfully duplicate a map a while back, can’t quite remember what I did exactly but it was via the UEFN file menu and the level saving options, it worked well and was able to be published.