Forumul comunității Thunderbird

TB 68.9.0 (64-bit). I'm using this version because I'm used to it.

Scenario:

• I am viewing the message list, eg the inbox
• I click a message
• The message is highlighted in grey with a thin blue outline. However it does not have focus: for example when I hit delete on the keyboard nothing happens
• When I click the message again (after a delay, so it's not a double-click) the message is highlighted in blue and I can now delete it from the keyboard
• When I delete it, grey highlighting (but again not proper focus) moves to the next email. If I want to delete that from the keyboard, I have to click it to make it blue.

Desired behaviour (this always used to happen):

• I click a message once
• It's highlighted in blue
• When I hit delete on the keyboard, it is deleted and focus (blue highlighting) moves to the next message so I can delete that from the keyboard immediately.

I've tried rebuilding the folder, to no avail. The config mail.delete_matches_sort_order is set to false, which is what I want (emails viewed from newest to oldest; when I delete one I want focus to move to the next one down, i.e. the next oldest one). As I say, the desired behaviour always used to happen and I don't know what's changed.