Import from slack: BulkImport: Some users not found

Ah sorry, you just said that in the logs you can find the lines for all users.

I wonder if there’s some incorrect data in the DB. Could you run this query in the DB?

SELECT Users.Id, Users.CreateAt, Users.UpdateAt, Users.DeleteAt, Users.Username, Users.Password, Users.AuthData, Users.AuthService, Users.Email, Users.EmailVerified, Users.Nickname, Users.FirstName, Users.LastName, Users.Position, Users.Roles, Users.AllowMarketing, Users.Props, Users.NotifyProps, Users.LastPasswordUpdate, Users.LastPictureUpdate, Users.FailedAttempts, Users.Locale, Users.Timezone, Users.MfaActive, Users.MfaSecret, Users.MfaUsedTimestamps, Users.RemoteId, Users.LastLogin, b.UserId IS NOT NULL AS IsBot, COALESCE(b.Description, '') AS BotDescription, COALESCE(b.LastIconUpdate, 0) AS BotLastIconUpdate FROM Users LEFT JOIN Bots b ON ( b.UserId = Users.Id ) WHERE Username IN ('Ralph','Patrick', 'Joshua', 'Sasha') ORDER BY Users.Username ASC

And check what output you get?