I'm dealing with a bizarre GMB ranking issue for one of my clients - I'm curious to know if anyone's come across it before - a Google search on the subject comes up short... It screams penalty or bug, but the GMB Support team keep fobbing me off (despite repeated attempts), just passing on generic "here's how to rank your listing/site" info.
For their main keyword, they're not showing in the Snack Pack (Top 3). If you click on 'More places', the only way that their listing will show up on Google Maps is if you zoom into their area and no other competitors are showing up. The moment you get to a portion of the map where it could show them and a competitor, it'll only show the competitor, instead of both of them. It's like Google are purposefully not showing the listing - and will only do so as a last resort if nothing else is available in the selected area.
The listing is 2+ years old, claimed/verified, has 5+ reviews, lots of images, all the relevant info filled out, and occasional updates in the G+ posts sections. To put this into perspective, one of the nearby listings that Google is 'favouring' is claimed but has no images, no G+ updates, no reviews, barely any info beyond the NAP. On-site is optimised and its inbound links are all white-hat, and the website's homepage even ranks mid-page 1 for the main keyword - so it's not the case that the website doesn't rank at all... Just the GMB.
Another random thought/idea: we had an issue whereby Google Map Maker thought that the actual building/postal address was elsewhere (further down the road), but it was resolved ages ago - maybe 1-2 years ago. A delayed knock-on effect, maybe...?
I appreciate that seeing the listing itself might help further, but I'm reluctant to de-anonymise it. I'm recultant to Hot Seat it, too (sorry)... If anyone is happy to give thoughts/advice based on this info alone then that'd be amazing. Thank you!