We’re having a weird issue with Thunderbird that’s showing up on multiple computers using the same mailbox. When we search using the top search bar (Ctrl+K), it often doesn't find all emails that clearly match the search term For example, we have multiple sent emails with the searched phrase in the subject, but Ctrl+K only finds one of them, even though there are two (or more) that match. When we use Ctrl+Shift+F (advanced search) with the exact same keyword and folder, all the matching emails show up just fine. So it's not like the emails are missing —they're just not being picked up by the Ctrl+K search. The annoying part is that Ctrl+K lets us open the whole conversation thread, which is really useful, while Ctrl+Shift+F only shows single messages. Ive tried to: - repair folders - delete .msf files - rebuild global database - reenable "Include messages in this folder in Global Search results" but it did not help And this isn’t just one machine, it's happening on every PC where this mailbox is used