Among 130 students, 2 of them were unable to login to Argos through LaSuli, whereas they succeeded in Cassandre.
Because authentication settings are exactly the same on Argos and Cassandre,
and because of the scarcity of the bug,
I suspect password encoding to be not robust enough in LaSuli (contrary to Cassandre).
@christophe-lejeune Do you remember a similar bug you fixed in Cassandre ?