For the local 127 address, I would say not to worry too much about that showing up because it's normal for Blue Prism to do that. If I don't know why it does, but I can confirm it does this in 6.8, 6.9, 6.10, and 6.10.1. It should go from the 127 address to then navigating to your target URL.
The screenshot you posted doesn't show for me. If you pasted it into the forum post, you may want to try the button 'Insert/edit Image' and try putting the image in that way. I have this problem a lot where I realize my pasted image doesn't show in the forum post.
When you say it works in the development environment, does it work when run from Control Room or do you typically only run it in debug mode (in process studio)?
Also, if you are able to get temporary access to try opening the object in the Production environment on the Runtime Resource machine, I think it'd be worth troubleshooting it to see if stepping through in process studio/object studio works or not.
For the Blue Prism Browser Extension Connectivity setting (ephemeral ports), did you restart the runtime resource machine after checking the setting? I believe the entire machine requires a restart before the setting takes effect on any particular RR.
Dave Morris, 3Ci at Southern Company