Something is off in the sync between the Navigator and the portion of the describe window that displays the source code for packages.
I had first opened a package using Ctrl-D and entering the package name. I found the procedure I wanted to look at and selected it using the Navigator. Then I clicked the Toggle Spec/Body button. When I did, the selected procedure in the Navigator changed to the one prior to the one I was looking at (prior in the order in which they exist in the package body itself, not alphabetically). I tried to reproduce this, but couldn’t find the exact steps to do this, but in the process I discovered that if I select one of the parameters in the body in source window, the previous procedure name gets highlighted in the Navigator. In fact, I’ve found that clicking as far down as the 6th line of the procedure keeps the previous procedure highlighted. As I double-clicked on various words in the code, the Navigator selection moved all over the place, including the name of the package itself when the word I selected was “when”.
Hopefully this is enough information to help you reproduce this one. Let me know if you need to see the actual package code and I can send it to you.
Digital Products & Strategies, Cru | Data Sciences & Analytics