Can't get OSL to work on Atreus for Chrysalis

EDIT: Nevermind. Turns out that if you have OSL(1) in layer 0, that key in layer 1 needs to be bound to Transparent. Works fine now; leaving this up for the record.

On my Model01 I use OSL and it works fine: single tap and I get one shot in the selected layer, double click and I get a permanent switch to that layer.

I’m trying to do the same thing in my Atreus. The relevant map config (from layer 0):

  "keyCode": 49162,
  "label": "1",
  "extraLabel": "OSL"

This is on the bottom right key, which is Enter in the default keymap.
OSL works like ShiftToLayer: If I hold the bottom right key down while in layer 0 I can chord stuff in layer 1, but as soon as I let go of the key mapped to OSL, it reverts back to layer 0.

Am I doing something wrong?