OK, thanks for the update, Bryn. I think there is enough information in this report now that it can be send to the programmers. For their ease, I will add a summary here. Please feel free to add any corrections.
----------------------- SUMMARY: Ubuntu version 18.04 Thunderbird 52.9.1 (from Ubuntu 18.04 repository) Problem is reproducible by the bug reporter. Problem is evident when there are duplicate messages. Steps to reproduce: 1. Start Thunderbird 2. Set view to "Threads with Unread" 3. Attempt to read through messages (bug most easily triggered with busy mailing lists, for instance the zfs-discuss list) 4. Some message threads cannot be expanded, appears to be related to threads with duplicate messages Expected behaviour: all expansion “arrowheads” should expand the thread when clicked. Actual behaviour: the expansion “arrowheads” for duplicate messages will not expand the thread when clicked. Additional notes: ----------------------- Bug triager is unable to reproduce the bug. Bug triager searched for dups - none found. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/583577 Title: "View by Threads with Unread" results in no ability to read some messages To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/583577/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
