Wow that's a lot of parts! Pretty sure it's rare for anyone to have done that much scanning--no wonder no one else has reported this
It only happens when opening and immediately scrolling down to click on something not among the first 26 items, but not if you first click on something within the top 26
before scrolling, in which case it will work normally throughout. So that's a temporary workaround until the next release, which includes a fix. Thanks!
Edit: Looking into it now and also discovered it doesn't occur when using the keyboard shortcuts.Edit 2: The plot thickens. You can still use the right mouse button to get the right info as expected. It's only the left mouse button that causes this problem, because the list window isn't normally used in the way it is for schematics, which allows info to be pulled up with either button.