Google recently made a change to their Local Pack and Local Teaser algorithm. In many cases, keywords that were previously showing as having Local Packs have shifted over to show Local Teasers presence instead. This can look like an enormous drop in Local Packs if you don’t track properly your Local Teasers.
In general, SEO tracking tools make a match between the domain name/URL being tracked and the Local 3-Packs and Local Teasers. The difficulty is that there is no website associated with a Local Teaser in a Google SERP, so most SEO tracking tools are currently limited in their ability to detect the presence of those Local Teasers.
https://www.linkoplus.com/how-to-track-local-teasers/
