The map on "Find my Iphone' has broken and missing grids

At last this method did it just right... Now there're no problems on displaying the map ( Windows PC-Chrome ) Thanks...

I too have found this problem with a prominent blank gridline space. I only see it happening with the Chrome Browser and it doesn't seem to be helped by setting the zoom option to 100%. 100% seems to be the default regardless and changing it back and forth doesn't seem to make much of a difference. I observe this gridline whether I am on a mac or a PC.

Has anyone found any other solutions?

Same here. I noticed this problem residing in Chrome, Internet Explorer, and Firefox on PC. 100% zoom didn't work. It did however work using the Safari browser on PC. Worked perfectly. Go figure.

Best bit of advice I have received! Thanks

Zoom out and Zoom in and refresh worked for me. Thanks!

I wonder why Apple did not fix it yet?

Changing zoom to 100% did not help but changing zoom to 67% solved the problem.

I had this problem with Chrome and IE.

Rest zoom to 100%, then refresh ... works great now, not sure for how long though ...

Just tried to find my wife's phone. The phone was located, but the map was completely blank in places, including the place where the phone was located. The only way I could tell that the phone was at home was that I could also see the location of the iMac nearby. Apple's maps stink.

for chrome users on windows

either set zoom level to 100% in settings as default zoom level or change zoom level temporarily to 100%

In both cases, you need to refresh the page in order to see the effect.

Thanks. It worked for me.