Member login error

So, here’s an update. When I use the function…

currentMember.getMember(options)
11  .then((member) => {
12    const id = member._id;
13    const fullName = `${member.contactDetails.firstName} ${member.contactDetails.lastName}`;
14    return member;
15  })
16  .catch((error) => {
17    console.error(error);
18  });

…it returns the wrong user. I tried reverting to the deprecated function…

import wixUsers from 'wix-users';
2
3// ...
4
5let user = wixUsers.currentUser;
6
7let userId = user.id;           // "r5cme-6fem-485j-djre-4844c49"
8let isLoggedIn = user.loggedIn; // true

…and it works like a charm! No idea why though.