How can I get a bibliography at the end of each chapter?

I am using this thesis template provided by my school, but they do not offer any support for it:
https://www.overleaf.com/latex/templates/colorado-school-of-mines-thesis-template/mmsgptvwxbph

Instead of having the bibliography (thesis.bib) generated at the end of the document, I need each chapter to have a separate bibliography generated as the last section. For example, in Chapter 2, if the last section was 2.6 Conclusions, it would be followed by 2.7 References, and the bibliography would be generated there.

Here is what I tried that worked for the first chapter I formatted, but not the following chapters.

I commented out bibliography{supporting-files/thesis} in mines-example-dissertation.tex. At the end of Chapter 2, I included

renewcommand{bibsection}{subsection{bibname}}
urlstyle{rm}
bibliography{ch2.bib}

This generated a bibliography at the end of Chapter 2, with a section header 2.7 References.

Once I included chapter 3, I used the same code at the end,

renewcommand{bibsection}{subsection{bibname}}
urlstyle{rm} 
bibliography{ch3.bib}

but none of the references in Chapter 3 are citing correctly (they all look like [? ? ?]).

The bibliography generated at the end of Chapter 3 as a subsection is identical to the one in chapter 2, even though I used bibliography{ch3.bib} it is clearly reading from the previous ch2.bib.

Any help would be greatly appreciated. In the preamble of the template, these packages are used for references:

usepackage[numbers]{natbib}
usepackage{hyperref}