When you say, you I tried to import the document into InDesign, do you mean copy/paste or place?

Does this occur already when you select the object or just when you move it?

Just an idea: If you have headers that are filled automatically, they can depend on text with a certain character inside a paragraph. You can apply this character stye to just those words that you want to appear in your table of content. And then you can build your table of content with the header paragraph style. (You could also place a text frame with the respective outside n the slug area.)

Did you check that MARCONATO is not in small letters and only looks like capital letters because of a character style?

You can do that with a character style and the underlining options.

You are sure that your spread is made with facing pages?