After reading this post: Gh 8 file not opening in GH 7 - #12 by Joseph_Oster, it reminded me of this post I made several years ago. I think this is still an issue, especially for new GH users.
In addition, it would also be great if the +/- options for inputs/outputs were made more obvious. Pretty much the only time I zoom so close to a component (to be able to see these) is when I actually want to use them.
I would imagine many people don’t realise these options, and/or those mentioned in my previous post, exist.