Sometimes it may help to activate the logging for the WorkerNode to understand conversion issues not being specifically explained in the Master.log, for example, installation failures.
To activate logging on the worker nodes, uncomment the following tag inside the file <WorkerNodeConfig.user.xml>
...
<logger localLog="true" logFolder="%AllUsersProfile%\Foxit\Rendition Server" logLevel="Info" maximumFileSizeMB="10" maxSizeRollBackups="4"/>
...
You can find the file in the installation path C:\Program Files\Foxit\Rendition Server or in the server where the Worker Node was installed, in the case the Managing Node and Worker Node are not located in the same system.
Please never make changes in the file WorkerNodeConfig.base.xml, our updates will overwrite them.
And do not forget to restart the service after customizing the configuration file.