Symptom
Foot control may do weird things like 'paste clipboard' when pressing a button in several applications.
Cause
This is related to Stratodesk NoTouch OS behavior
Resolution
you can avoid this by adding following command to "Custom xinitrc end" in X11 configuration: xinput disable "Philips Speech Processing Footcontol USB"
starting with Firmware 3.04 use: xinput disable "Philips Speech Processing Foot Control"
Check this page for details about X11 configuration https://www.stratodesk.com/kb/X11#Customization_hooks