Replay Demoplay vs PlayReplay issue

Hello,

I’m recording a replay via GameInstance ‘StartRecordingReplay’ and stopping it using ‘StopRecordingReplay’.
That works fine and creates the replay in the Saved/Demos folder.
The replay is called ‘TEST’

Now if I use ‘Demoplay TEST’ in the console command in game, it works fine.
However if I call on GameInstance ‘PlayReplay’ and pass in the FString of ‘TEST’ it places me stuck at the origin - no replay playing.
Worth noting the bool return from ‘PlayReplay’ is true.

Can anyone see the obvious fault?

Thanks