I just checked another thing (because I just braught myself to thsi idea) - I not only DISabled the LDAP search in Edit/Preferences/Composition/Addressing - I clicked on "Edit Directories" and deleted the LDAP server out of the config, then disabled LDAP search.
voilla, It workes normal.
This definitely must have something to do with ldap.
I just checked another thing (because I just braught myself to thsi idea) - I not only DISabled the LDAP search in Edit/Preference s/Composition/ Addressing - I clicked on "Edit Directories" and deleted the LDAP server out of the config, then disabled LDAP search.
voilla, It workes normal.
This definitely must have something to do with ldap.