The "Contact icons" status icons (you know, the online, away, offline icons) are not shown properly; instead there is a generic 'file'-like icon which I believe is used when a icon is missing. Please see the attached screenshot. I'm using the Compact scheme but the issue is present in the "Default" preset as well.
The chat window style is also missing icon, please find the attached screenshot.
ProblemType: Bug
DistroRelease: Ubuntu 17.04
Package: kopete 4:16.12.3-0ubuntu1
ProcVersionSignature: Ubuntu 4.10.0-20.22-generic 4.10.8
Uname: Linux 4.10.0-20-generic x86_64
ApportVersion: 2.20.4-0ubuntu4
Architecture: amd64
CurrentDesktop: KDE
Date: Tue May 2 13:01:47 2017
InstallationDate: Installed on 2016-09-05 (239 days ago)
InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
SourcePackage: kopete
UpgradeStatus: Upgraded to zesty on 2017-03-31 (31 days ago)
Status changed to 'Confirmed' because the bug affects multiple users.