Issue with Pages display in the admin…

Upgraded a few localdev installations this morning only to find that most Pages had disappeared from the admin in each one. Only 3-4 are showing up, regardless of whether I’ve selected the ‘All’ link. After my initial panic I finally realized it’s because the pagination is being truncated… but why so few at a time is beyond me. Anyone know if there’s a setting to change this? I did not have this issue in 2.7b2.