The circle and square show the internal path-vertex check. If they vanish, that is considered linked.
I tried the finest grid of 1, to see if there was any no-mans-land where the circle.square could vanish,but not spawn a connection and I could not recreate.
ie I could not get a result where visually the hints were gone, but the connection was not made. That would be more serious.
That’s not quite the same in your top image you have a error tag, but the pin 3 will be connected.
The error tag may be generated something else.
Yes, with a lot of error tags, SCH side can get less ideal…
Comment 1 : Who decided Green as an Error colour is a ‘good idea’, or having ALL errors one colour is a good idea ?
Different colour tags would be visually much easier to manage, and some ‘errors’ are really ‘warnings.’
ie getting : " When I get ErrType(8): Global label not connected to any other global label might not be a design error, but a deliberate net-name or tag-style choice.
It’s still useful as a warning, as the SW has alerted the user to a possible typo, but if the user ‘really does want to do that’, the even merely average SW should not force that decision into an error basket.