Sorry, not at all my intent to make the drama. It's been a stressful days, and so, anything that messes with my (kinda) process takes me off....
And sometimes (most times) my English is really bad, so, something I say can be wrongfully interpreted. Once again, terribly sorry.
So, to clarify, the bottom USB3 connector is the one that I was using, and as you confirmed, it was not implemented.
I also changed the USB2 connector to the right one (in attached image Blue dots correspond to "old" connection, Orange to "new" connection.)
View attachment 279471
Just a personal doubt: You stated all ports (besides one internal USB3 connection) worked, so, was I supposed to be able to use USB2 without changing the internal USB2 connectors? Just asking, so I can learn something.