I've encountered a stange issue: By default, a quoted reply is indented to the right with a vertical line on the left side. Since some time, this vertical line disappears… (read more)
I've encountered a stange issue: By default, a quoted reply is indented to the right with a vertical line on the left side. Since some time, this vertical line disappears when composing a reply - i.e., when clicking "reply", the compose window opens where the vertical reply bar shows up on the left for a split second but then disappears, leaving just the quoted text without indentation or reply bar. Compose in HTML is on, but it shouldn't matter for the reply bar display anyway. Reply quoting is also enabled, of course.
I know the reply bar can be toggled in the config by mail.quoted_graphical and mail.quoteasblock, but both values are already set to true. Setting them to false should completely disable the reply bar, but it shows up for a split second and is "auto-removed" in the compose editor. It's also not just a display issue in the editor because a recipient doesn't see the reply bar either.
Is there anything else I can check? Most likely it can be resolved with a clean profile, but I want to save the pain of setting up everything again if possible. The issue occured over the span of multiple recent TB versions on Windows 10.