I am using Thunderbird version 52.7.0, on Ubuntu 16.04.4 LTS, Xenial.
I have a hard time to figure out why I don't get any Reminder Popup for events or tasks. Even though I have setup my Lightning as follow:
I also checked Show Reminders in Menu Edit → Calendar Properties…, but still I don't get reminder.
I did a test that, if I am the Organizer of event then I got a reminder. For the event I get invited, I don't get reminder.
Is it that the case, that only the owner of event gets reminder? Does anyone have a solution?