Can't view Google maps in Safari

In another discussion users are reporting the following works...

Safari->Preferences-Advanced->check “Show Develop menu in menu bar”. Now from the Develop menu select “Experimental Features” and scroll down to “WebGL via Metal” and uncheck it. Now try Google Maps again.

It appears this issue is limited to Intel based Macs running Safari 16.0. I have an M1 Mac Studio and do not experience the issue. Anyway, try this and report back.

Safari->Preferences-Advanced->check “Show Develop menu in menu bar”. Now from the Develop menu select “Experimental Features” and scroll down to “WebGL via Metal” and uncheck it. Now try Google Maps again.

It works only if you are logged in your Apple ID

Well this did work, but I came to realize that I needed to log into Apple forum with my password (to comment), then I went back to "Experimental Features" and the long list of "titles" was in bold black (not gray) and the checks were beside the features listed. I clicked on "WebGL via Metal" to uncheck it, and that resolved the issue with the line across a black screen in Google Maps. Good on you, the independents helping out us neophytes.

I have this issue as well. 15 inch mid 2015 MBP. After upgrading to 12.6 it started. Maps on Weather Underground collapse to a horizontal line. Today I realized google maps also does it. You can see the map for an instant then poof it's gone. It only seems to happen in Safari. Chrome and Firefox don't do this.

It's happening on my old Macbook Pro too. (Mid 2015 model.) Exactly as described and illustrated. But when I launch Google Chrome the maps are just fine. It's only in the last update to Safari.

this worked for me after signing in on my Apple account

Log in to your Apple ID and then try again. That's how it worked for me.

Thanks for reaching out geno053,

Since this issue sounds like it is related to a specific app, let's follow these steps to work on that app: If an app on your Mac stops responding, closes unexpectedly, or won’t open - Apple Support

1. Close the app and open it again - test to see if the issue continues as that may be enough to refresh and resolve the behavior.
2. Restart your Mac, if the issue continues, and then test again.
3. See if there are any available app updates and install them.
4. Delete the app and reinstall it.
5. Contact the developer if the issue continues: How to contact an app developer - Apple Support

Take care.

Yes! That did the trick! Thank you SO much!

And for anyone else, dianiels said to "Log in to your Apple ID and then try again. That's how it worked for me."

Breaking it down, She/He meant to login to this community page first with an Apple ID, and then the grayed out Experiemental Features list was no longer grayed out. It took a few attempts before the list was no longer grayed out.

Very grateful!

Danka Community ~

I have this issue also. Running Safari 16.0 on MacBook Pro (Retina, 15-inch, Mid 2015) Monterey 12.6

I called Apple Support as suggested but they were not very helpful, suggesting I consult Google support. I can't find anything there.

the horizontal line across a black screen is a recent phenomena on my 2015 computer, I closed Safari and opened Chrome (Google) and maps worked as expected, no horizontal line on the black screen.

I followed the step wise process described above while on Safari and I had "Experimental Features" displayed but the pop-up window with a long list of "titles" was displayed gray and I scrolled down to "WebGL via Metal" I could not select, there was no indication that a selection of any of the items on the pop-up window could be selected. Am I doing something incorrectly ?

the horizontal line across a black screen is a recent phenomena on my 2015 computer, I closed Safari and opened Chrome (Google) and maps worked as expected, no horizontal line on the black screen.

I followed the step wise process described above while on Safari and I had "Experimental Features" displayed but the pop-up window with a long list of "titles" was displayed gray and I scrolled down to "WebGL via Metal" I could not select, there was no indication that a selection of any of the items on the pop-up window could be selected. Am I doing something incorrectly ?

That worked for me after logging into my Apple account, the list on Experimental Features became dark black with checks on the left side of items listed, clicked on WebGl via Metal and no more line across black screen display in Google Maps, thanks for the solution !