Notarisation Hash Function drop down only allows SHA256 as a selection.
It appears the previous alternative hash functions have been removed. The drop down functionality is a bit confusing as there is only one selection available. Either provide multiple options, or remove the drop down functionality from the menu.
Replication Steps
From an open wallet, select the tools menu --> Notarise Document --> under Notarisation Hash Function only SHA256 is allowed as selection.