Understanding BaseURL and links

Thank you.

I should create a new “test site” that is as small as possible, yet shows the problem.

I think this is my problem:

But, it doesn’t help me understand how things work.

My problem isn’t making things work - its understanding all the machinery so I can use it correctly.

Knowing how to avoid having baseURL chopped (sometimes) doesn’t help me why it was happening in the first place.

Thank you,

Mike