When you send a print job to your Ender 3 Pro, using your Octopi, it starts to print, and the hotend does not recognize the correct size for the bed. The hotend is pushed off to the side, begins clicking, and the print is a mess.
Make sure your Slicer has the correct bed size set in it
Make sure the OctoPi has the correct printer setup in it
Turn OFF your printer
Turn OFF your OctoPi
Disconnect the USB Cable in your Ender 3, from the OctoPi
Wait 30 seconds
Turn ON the printer
Turn ON the OctoPi
Wait 1 minute
Plug the USB cable back into the Ender 3
Login into your OctoPi
Click connect so the OctoPi works again with the Ender 3
Send the print job that failed before
And now it works!