Thunderbird Says “Imported Successfully” — But Where Are My Emails?

Just tried importing an MBOX file using ImportExportTools NG — Thunderbird says it’s done, but I can’t find the emails anywhere. No new folders, no trace of imported data. Anyone else experience this ghost import?

Thankfully, I tried SysTools Thunderbird Import Wizard, and it not only imported the MBOX but also placed everything neatly where I could see it. If you’re tired of vanishing imports, this is the way to import MBOX to Thunderbird. Curious if anyone fixed this in Thunderbird itself?

Solution Found:
https://www.systoolsgroup.com/thunderbird-importer/