port not available (even though it is)

I keep getting this error every time I click the lure despite ensuring the port used is open and trying multiple different ports, any ideas of where to start troubleshooting?


Start by reproducing the error when clicking the lure with the reported ports open, using the attached screenshot as the initial reference. Trace the port check from that entry point and verify the behavior across multiple ports; done means the lure starts successfully when a usable port is open.

Written by the indexing model from the issue text.