Eevery single day, every software developer does this. Analysing the issue, location where it's cca located, debugging that area of a codebase and hopefully, once finding that tiny little bug, fixing it :) It's a bread & butter of all developers. Especially if you're new to the company or in general young junior developer, you spend most of the time doing things like this - to get better as well as to understand the project you're new to better.
Btw you can apply this approach to any problem in your life as well :)
▶️ DTube