Cannot add a user to a shared folder via lpass share useradd

[XSchelin]

I'm using version 1.6.1.GIT. Steps:

lpass share useradd "Shared-Folder-Name" user.name@domain.tld

I get no response. I check in the log (I have logging set to LPASS_LOG_LEVEL=8) and it shows a successful connection.

I run:

lpass share userls "Shared-Folder-Name"

And I don't see the user.

The user absolutely exists; I get an error if the user doesn't.

The folder absolutely exists; I get an error if the folder doesn't.