SUMMARY
I tried installing and using the Spectacle snap on Kubuntu 18.04 (I wanted to try the latest version), but it crashes on startup due to a missing library.

STEPS TO REPRODUCE
1. $ sudo snap install spectacle
2. $ snap run spectacle

OBSERVED RESULT
"spectacle: error while loading shared libraries: libxcb-cursor.so.0: cannot open shared object file: No such file or directory"

EXPECTED RESULT
Launches Spectacle.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Kubuntu 18.04
KDE Plasma Version: 5.12.7
KDE Frameworks Version: 5.44.0
Qt Version: 5.9.5

ADDITIONAL INFORMATION
$ snap info spectacle
name:      spectacle
summary:   Screenshot capture utility, replaces KSnapshot
publisher: KDE✓
contact:   https://bugs.kde.org/enter_bug.cgi?product=neon&component=Snaps
license:   unset
description: |
  Spectacle captures images of the screen. It can capture the whole screen,
  a specified region, an individual window, or only part of a window.
commands:
  - spectacle
snap-id:      tg12Jrs93ndp40AEQnlbuMbtmVJ6ZPpk
tracking:     stable
refresh-date: today at 16:20 CDT
channels:
  stable:    18.12.3        2019-03-26 (12) 299kB -
  candidate: 18.12.3        2019-03-26 (12) 299kB -
  beta:      ↑                                    
  edge:      master+aa9600c 2019-03-26 (11) 180kB -
installed:   18.12.3                   (12) 299kB -