Removing numbering on lines (not page numbers) in TOC?

Setting up a TOC for a course reader… Everything is basically right, EXCEPT indesign is inserting extra  numbers on the third-level lines. I already have the chapter sections set up to be numbered as 1.1, 1.2, and so on (TOC3 paragraph style, which I’ve applied to the third-level lines via the TOC settings).

But, there are still extra numbers being added to the chapter section lines, as well as the chapter summary and reference lines. For reference, the first photo is regular text with my TOC paragraph styles assigned—basically how I want it to look (ignoring the unjustified page numbers). Second screenshot shows the generated TOC with extra numbers; even if I manually change a line’s paragraph style, the extra number remains. So I’m assuming the problem lies somewhere within the TOC settings; I just can’t figure out what it is. I feel like I’ve toggled every possible setting and haven’t seen a difference.