Vive - Player start different in exe than in editor

I’ve created a 3.5m x 3.5m space for the room scale, and to support that a 3.5 x 3.5m space in game.

This gets represented well in the VR preview in engine however when I package the game the player position gets thrown to the left by about 1 meter?

This is quite disruptive as the room scale no longer works as it should…

The start position is at the world origin (as is the floor mesh) so in theory this should be working fine? Also the level blueprint only has the stream level load and enable HMD after event begin play.

Does anyone know what might be causing this? Would be a massive help if so!