Mac App Store blank update page

I had same problem.

My resolution was

1. sign out of App store
2. log back into App store
3. quit App store
4. re-launch App store

Updates were back. I think my issue was that one update hadn't completed prior to applying latest OSX update (in my case this was XCode update).

Hope this helps

Conrad

This worked for me even though I'm pretty sure I was already signed in with my iCloud account.

Just did Store > Sign Out then Store > Sign In and the Updates page was back to normal.

Thanks!

Thank you, Resetting NVRAM worked.

In my working with Macs, since the time they used vacuum tubes and punch cards to program Mac OS V.LXII, PRAM reset very rarely had any affect. It was often done as a joke when you were admitting to trying everything else.

This time, it worked, but not after scaring the bejeezus out of me, first. It booted into a generic user start-up screen. Those gray squares asking for my set-up preferences. Was my OS wiped clean? Is it only me that sees the irony for Apple asking me my AppleId password when I keep it safe on the Mac and I have no way to see it?

I very quickly went to System Preferences and selected my start-up drive and restarted my Mac.

There must have been an easier way. This smells too much like a MS "Power off, then turn it back on" solution.

Will we ever return to "It Just Works?"
I'm growing weary of being Apple's R&D department and not getting paid; getting too old for this shtuff.

Thanks, again.... until we meet again in a new upgrade nightmare.

I have the same issue... Update page is blank.

Resetting NVRam can't fix this... Mac's haven't put anything interesting in NVRam in 10+ years... it's a voodoo fix that people still try though...

I have gotten rid of every cache, logged out/in, etc... something in a recent update appears to have broken this page.

running softwareupdate -a -i from the terminal still works, so it is "just" the app store app that is broken...

I'm not surprised NVRAM Reset (Opt+Cmd+P+R) had no affect. I was shocked when mine did, but for me, something odd had happened: It rebooted as if it was a new user. That's what made me wonder if my system was trashed (going directly to System Preferences > Startup Disk) fixed it, but not after panicking first.

As such, I don't think NVRAM Reset (Opt+Cmd+P+R) was the actual solution, just a coincidence. I had already installed the update and verified I had 10.13.4 in "About This Mac...", and using it for most of the day. The App store's "Upgrades" was how I did it. It wasn't until I rebooted later, when I saw there was a (2) badge awaiting updates that nothing was there and I couldn't find out what it was (later finding out it was the Xcode and a Solitaire game... ok, I need a life).

Did my Mac not fully finish the 10.13.4 update? I have no idea. If so, why not?

Maybe, doing the Download macOS High Sierra 10.13.4 Combo Update manually might kick it in the טאָכעס (tokhes).

[Yes, I get today's Easter irony... and love it.]

I will never say, "It works for me" when there are still people suffering from this unending digital malaise. I hope there is a real solution by Apple employees that care.

The king has died, the magic is gone, and Camelot has become just another crumbling ancient castle.

A slightly newer castle hasn't helped; it's, already, on weakening ground.

For us, we're left to futilely patch the erosion alone.

Never download any Mac updates from anywhere but the App Store. Otherwise you could invite malware.

Considering the 10.13.4 update just became available, the servers may be over loaded.

Give it a day or two then try again. There's no rush to do this.

I logged with my wife's account on my Mac and I still have the same issue.

(On her Mac with El Capitan there is no problem)

The big problem is : if it is a bug induced by Apple in any way, there is no way to update any software, and so no way to correct the Bug. That seems to be a sort of deadlock in this case.

He said that he was downloading directly from the Apple download site. I doubt that Apple is adding malware to the downloads!

Download macOS High Sierra 10.13.4 Combo Update

I did NVRAM Reset (Opt+Cmd+P+R), Sign out and Sign in, no result : MAS "Updates" page is still left totally blank with 2 updates !

Sorry, it was no help to me. I logged on & off several times with iCloud and iTunes, in various combinations.

Nothing.
Even changing the country flags.

Still blank.

If I come across a magical cure, you'll be the first to know.

Nice thought, and that's saying a lot; I hate iCloud; totally deleted my photos. It took hours to get them back. Never more.

No iPhone, no AppleTV, no iWatch, no iPod, no iPad, no Apple Pencil, no AirPod, no HomePod... just my 1 lonely Mac, usually forgotten by Apple, not important enough. "It just works" ...but it'll cost you.

I did NVRAM Reset (Opt+Cmd+P+R), Sign out and Sign in Quit and Relaunch, no result : MAS "Updates" page is still left totally blank with 2 updates !

All tabs except "Updates" are working fine : "Updates" window, with a count of 2, is left all blank.

(It seems that a similar issue has occurred in 2012 !)

This occurred 3 days ago (29 march 2018) after updating iTunes 12.7.4.76, and iWork (Pages version 7.0 (5576)).

Mac OS X 10.13.3, App Store Version 2.3 (654.8)

I have just run into this problem today, after downloading the 10.13.4 update. I've never had this happen before, so I am suspecting that the update caused it.