And welcome to the KNIME Forum and to our community.
Would you be able to share your node settings and e.g. the KNIME log from debug mode? You can set this in the Preferences > KNIME > Log File Log Level.
I want to check back on you if you could resolve your issue or if you still have problems.
If the latter applies, I would need to have a look at your node settings and debug level logging, to get some insights on what you are trying to do and what is going on in the back.