Running XSCT utility not working

Running the XSCT utility, doesn't seem to work.

When entering the #xilinx-shell it can't find the XSCT utility.

• Sourcing the settings64.sh under the Vitis// seems to allow it to be found in the #xilinx-shell.
• Trying to start the utility fails with the following output:

" bash-5.2$ xsct NOTE: DISPLAY is currently set to a an invalid value. /run/current-system/sw/bin/xlsclients detected this :0 as invalid display. Trying to set the DISPLAY to a dummy display by staring Xvfb. Display is :179 Could not start Dummy XServer, please make sure Xvfb is available on the system bash-5.2$ "

MORE INFO:

• I'm able to start the Vitis and Vivado GUIs fine either using the #xilinx-shell or outside of it.
• The XSCT utility doesn't work in the Vitis GUI either (will cause crash if trying to use)
• XSCT utility is needed to automate build process.

How is the XSCT utility supposed to be ran?