So in order to customize my org mode files, I have
(setq org-ellipsis "⤵")
in my config, which seems to be a very popular customization (the arrow being U+2935). This works correctly for the most part. In some cases, the ellipsis character is displayed as a block as if I don't have the proper Unicode fonts set up; only I do because some headlines have the ellipsis displayed properly. Here's an example:
I tried to set up
utf-8 encoding for my files according to this answer but it didn't help. I'm new to emacs so I don't even know how to go about debugging this issue.
I forgot to mention that I noticed this behavior consistently on Debian Linux, Arch Linux and Mac OS X.
EDIT 2 (another symptom)
I have discovered the difference between the headlines that display properly and the ones that don't. It is so seemingly insignificant that I ignored it earlier. It seems any headlines that have a blank line before the start of the next headline cause the ellipsis to display improperly. So for example in:
* Headline 1 Contents * Headline 2 More contents * Headline 3 Last contents
The ellipsis for headlines 2 and 3 (when folded) displays correctly but a block is shown for headline 1. If I remove the blank line between headlines 1 and 2, the ellipsis for headline 1 is displayed correctly as well. What is going on here?
If I remove the customization, the default ellipsis is displayed correctly for all headlines.