Do not understand someone else code, is a valid issue, if the project was development for a few month. Then team got switched around this is a huge RED flag by

Do not understand someone else code, is a valid issue, if the project was development for a few month. Then team got switched around this is a huge RED flag by itself. Big question is why this happened. Staring at a large code base with 1.5month to finish it, no tests, probably zero documentation and manager who used to manage the previous team.. RUN not walk away from this