TBIRD LOST MOST OF MY ADDRESS BOOK. This happen to you???

Thunderbird is incapable of losing part of an addressbook. More information may prove helpful. Thank you

42 Entries. Have 5 left. Where did they go?

Oh, It was a sub file. The file above lost over a 100.

Perhaps previous problems are related: 1. https://support.mozilla.org/en-US/questions/1589395?page=2 2. https://support.mozilla.org/en-US/questions/1584345