Python debugger not connecting to Pycharm

Operating system: Ubuntu 18.04.5 LTS
Slicer version: 4.11.20210226
PyCharm: 2021.2 (Professional Edition)
Expected behavior: I followed the instructions on SlicerDebuggingTools/ at master · SlicerRt/SlicerDebuggingTools · GitHub to set up the debugger in Pycharm to Slicer
Actual behaviour: PyCharm debug egg path didn’t automatically load in the path. Found three different folders containing the same pydevd-pycharm.egg file on my computer. Tried all three and none of them worked (Restarting Slicer each time). Any other suggestions for me for why this isn’t working?

I’ve just tested PyCharm remote debugging on Ubuntu and it works well. See these notes on how to fix the Connection refused error.