Signals Notebook: PDF prints show units in FM and MW columns of reactants table, but web view in Signals does not

Yes, this is the designed behavior.

For "FM" and "MW" fields, the unit is not displayed if it is a default unit, i.e. "g/mol".

When user is editing the value, the unit IS displayed. But if the entered value still uses a default unit, then that unit is visually removed when not editing.

Application always shows unit other than default (kg/mol, Dalton).