Invisible problems
If you don't know what ‘invisibles’ are in your text editor, it can be quite difficult to find out how to hide them.
Because if you don't know what the problem is, let alone how to describe it, you're not going to find it easy to find a solution.
Most problems are like that. It's not that answers don't exist, it's that you don't know how to define the problem in a way that makes the solution obvious.
The alternative is to know what things exist before you have an issue with them. To actively seek out the elements that have been hidden from you all along.
Either that, or get really good at accurately describing your problems.