Google Chrome’s New Tab Page by default shows 8 thumbnails for most visited sites, users on Chrome 44 has a strange experience where New Tab Page is only showing 6 thumbnails instead of 8. Don’t worry! Nothing wrong with your Chrome, it’s a bug! Will be fixed in Chrome 45.
Chrome 44 bug: New Tab Page shows only 6 thumbnails
There is also another bug that has been reported in v44 where last thumbnail column doesn’t appear when zoom level for NTP is set to 90%, ensure NTP is not zoomed for you and press ‘Ctrl+0’ to see it restores all thumbnails. This issue will also be resolved in the next version.