This is probably related to your documentclass. Not all of them add the chapter or section to the figure label. There is a very detailed answer here: https://tex.stackexchange.com/a/28334/118712 My guess is that you want to use \usepackage{chngcntr} \counterwithin{figure}{section}.
– Markus G.Jun 14 '21 at 10:26
documentclass. Not all of them add thechapterorsectionto the figure label. There is a very detailed answer here: https://tex.stackexchange.com/a/28334/118712 My guess is that you want to use\usepackage{chngcntr} \counterwithin{figure}{section}. – Markus G. Jun 14 '21 at 10:26chngcntris not even necessary as it should be part of your latex kernel (since 2018). – Οὖτις Jun 15 '21 at 13:46