Just a heads-up for all of you:
I just did a dnf update which updated wsdd. After the update wsdd fails to start.
I tracked this down to the wsdd.service file changed the location of the EnvironmentFile from /etc/sysconfig/wsdd to /etc/default/wsdd. The latter file did not exist on my system. A simple “ln -s /etc/default/wsdd /etc/sysconfig/wsdd” fixed the issue.
Documented here for others who may see the problem and so it might get fixed.
P.S. dnf history wouldn’t let me revert wsdd - couldn’t find an rpm.