I will test the workflow and let you know accordingly regarding Issue#1 . We are using KNIME server 4.6.2.
I also have another issue with the KNIME Scheduler and is explained below.
Issue #2 :
This is another issue that we have observed with the KNIME Scheduler on the production server(specs are mentioned below) that we did not experience on our development server(specs are mentioned below). When a workflow is scheduled to execute once a day it triggers 2 times as shown below. The below workflows are set to execute at 3AM and 1:32 AM respectively but you can see that it fires off 2 times.