The Mac App Store “Updates” screen has been coming up blank for me in Mojave for the past few days. The other screens seem to work fine, although I haven’t actually purchased any apps. Is anyone else seeing this? Any idea what’s going on? I’ve tried relaunching the app, signing out of my account, and the problem has even persisted across a system reboot.
Yup. Seeing the same here. It’s working fine on my High Sierra Macs.
I tried user vikramchennai’s solution here (basically deleting some cache files), and the Updates pane was back after rebooting.