A layer doesn't de-trigger

Hi, I'm modifying the Stardust character. I've got one issue I've just spent three hours fixing but to no avail. There's a Default lid that should disappear when other lids are triggered. This works fine for the Left eye but on the Right eye in the Frontal pos, the Default lid always shows. I've compared the two sides many times and I can't figure it out. Can anyone take a look at the puppet? Thanks!

EDIT: it's the /Head/Frontal/Right eye/Lid/Default/Default lid group. Works fine in other poses.

https://www.dropbox.com/s/nd3kxeuj8iqhndb/test.puppet.zip?dl=0