I recommend you go to Google Search Console > Links > Top Linking Sites > More to see if Google has indexed the domains from where these links are placed. If they are not, it's going to be hard for Moz to detect them and they won't help you with SEO until they do show up there.
I also recommend that you only target websites for links with a PageRank of 4/10 or higher. You can check their rank here: https://www.prchecker.info/check_page_rank.php
