This might be out of scope for the org list, but the excellent emojify-mode
(https://github.com/iqbalansari/emacs-emojify) breaks the alignment of org
tags when emojies are included in the headings.

So:

```
** TODO write something short                                 :writing:
```

but

```
** TODO :waving_black_flag: write something short  :writing:
```

Emacs  : GNU Emacs 26.1 (build 1, x86_64-apple-darwin17.5.0, NS
appkit-1561.40 Version 10.13.4 (Build 17E199))
 of 2018-06-13
Package: Org mode version 9.1.9 (release_9.1.9-65-g5e4542 @
/usr/local/Cellar/emacs/26.1_1/share/emacs/26.1/lisp/org/)