User LDAP(imported) Created At 1970-01-01 01:00

I have a problem with the user’s login date.
It works fine for local / guest users but for LDAP (imported) users they all changed to 1970-01-01 01:00 /
New and old alike.
An idea ?

Which version Seafile do you use? Do you still have the problem?

I am in Seafile Pro 7.1.12, I have this problem for several versions …