Answer 1

It's not a bug.

I have 50 public codes but I have like 20 or so projects(28 to be precise). This can be edited.
Click on the highlight, click on *manage projects*.
You'd find out that you can increase or decrease the number of projects you have.

For some reason I don't know how the app calculates the project. Is it every written code that's a project or it sorts it automatically?
A mod should explain better.

Answer 2

If you save others codes or private your own codes then these won't be counted as projects.