FTP(S) - Source directory exists, but YADE cannot find it when settings polling timeout

Current Situation

• When creating FTP source fragment and using parameters to set the pooling timeout while transferring the files.
• The FTP file transfer fails with an error that the source directory is not found even if the source directory exists.
• Error from the job log:
  2020-05-11 10:44:54.128+0530 [info] [stdout] 11 10:44:54.112 [ERROR] (SOSDExJSAdapterClass.java:105) - SOSDExJSAdapterClass ended with error: com.sos.JSHelper.Exceptions.JobSchedulerException: [WaitForSourceFolder=false][uploads/]source directory not found.

How to reproduce

• Create a file transfer job which transfers the files with FTP as a source fragement
• Add the parameter pooling_timeout to the YADE job. For example: <param name="poll_timeout" value="10"/>
• Execute the job.
• The job fails with an error source directory not found.

Desired Behavior

• The YADE should not throw an error when the pooling timeout parameter is set and the source fragment is FTP.