Redwood MSS Add Absence shows incorrect Person name

When a Line Manager is using the "Add Absence" page, entering absence for a for a member of their Team, the Employee Name does not show correct, mealy a scramble of letters and numbers such as QWRhbSAgRXVzdGljZQ==

My Team —> Choose a Team Member —> Add Absence

When the same Manager enters Absence for themselves, via Me —> Time and Absence —> Add Absence, the Employee Name shows their own name correctly.

The Manager is using the seeded Line Manager Role. We are on 25C.

Is anyone else experiencing the same issue please?