From the illustrations in the guide, the Payer field was used to represent the tree level for each node:
Now, it no longer displays the field value in a tree (I am using v21.4.60):
This causes confusion if John Smith were both a partner and employee/Expense Claim Payer.
There’s been similar changes to other drop-down lists such as accounts.
The format went from tree like to something like this
https://forum.manager.io/t/improve-accounts-showing-in-account-drop-down/34085/26?u=ealfardan
So it appears to be a related temporary issue but a confirmation from the developer wouldn’t hurt.