I can duplicate this too. Chrome/Mac 14.0.835.202.

Doesn't duplicate in Safari.

FWIW, I worked around this by positioning the marker at 0,0, then back to the intended position after a 50ms setTimeout. Hacky, but I really dig the animation, so I'll live with it for now :)

Brent, can you go into more detail about your workaround? I'm hitting the same bug and don't know how to fix it.

Same here in Chrome 16.0.912.75, on Windows.

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I've already see this behaviour. When the marker drops into the map flickers at final position. It only happens when the marker has a shadow attached to it. if there's no shadow, there is no flicker.

why is this marked as fixed when it's not? chrome 21.0.1180.83

Fix this please.

We've made some improvements. If this is critical for your application: use non-optimized markers.

This still does not work properly in Chrome...even with optimized set to false. I also tried a suggestion above of removing the shadow by setting the marker 'flat' property to true. The markers still flicker!

Any updates please???

This is certainly not a critical problem, but I too reproduce this on Version 25.0.1326.0 canary on Mac OS X.6.8 and setting optimized to false did not help for me either.  One further observation, flicker seems to only happen with second and later markers added to map.

confirm #11
http://gmaps-samples-v3.googlecode.com/svn/trunk/markeranimations/markeranimations.html
and start adding more markers
Chrome Version 26.0.1410.65 on OS X 10.8.3 (12D78)

Still having this issue.  Optimized: false does not fix.

Still having this issue.

Started making an internal maps project for my company and I can confirm this issue on the newest version of Chrome. It's really bothering me cause I'm going to pretty serious lengths to ensure that only new pins in the searched area drop so as to better visually inform the user of what is outside the intersection of the new and past search results. The flicker fights that slightly :/

Same issue here.

Happens on Chrome with custom PNG icons (other than default red marker), even with no shadows.

Happens in Chrome version 28.0.1500.71 with red default markers

Confirm on OSX, Version 28.0.1500.71

Confirmed on Chrome 28.0.1500.95, Windows 7
Both with custom PNG draggable marker within my own project and the default red marker at http://gmaps-samples-v3.googlecode.com/svn/trunk/markeranimations/markeranimations.html
I've tried making my marker non-optimized but the issue persists.
The issue is not fixed.

I still vote for a fix!  But, here is somewhat of what you may consider a workaround...rather than using DROP, try the BOUNCE animation, and then change it to null after a certain period of time to simulate a drop.  It's not as dramatic as the drop, but it creates at least a nice, smooth animation.  I found that setting animation to null after 1150ms creates a nice smooth bounce:

marker = new google.maps.Marker({
    map:map,
    animation: google.maps.Animation.BOUNCE,
    position: leverage,
    icon: image
  });
  
  setTimeout(function() {
    marker.setAnimation(null); // this stops the bouncing
  }, 1150);

You can see a live example here if you scroll to the bottom: https://leveragenewagemedia.com/

Same issue on Chrome 28 on Ubuntu 13.04.

Setting optimized to false helped.

Confirmed issue on Chrome Version 31.0.1650.48 using Mac OS X 10.9 (13A603)

Reproduced in Chrome v 30.0.1599.101 on OS X 10.9 (13A603).

Setting the marker's optimized flag to false *didn't* help in my case.

Same here, setting optimized flag helps a bit but flickering still happens

Reproduced in Chrome Version 32.0.1700.107 on Ubuntu 12.04 and Chrome Version 32.0.1700.107 on Windows 7.

Setting the optimized flag to false did not help.

This is proudly becoming a three year bug.

Please fix this!

Issue can be seen at this fiddle:

http://jsfiddle.net/4HS3R/

Can confirm still an issue Mac 10.8.5. Chrome Version 36.0.1985.125

I figured out a hacky workaround. Just set the map marker icon as an invisible .png, then setTimeout 100-150 ms and set the marker icon to be something else. 

It fixes it for most computers, obviously not ideal tho. Hope that helps

create the image fist and put some additional infos about the markers: 
var image = {
    url: 'images/map_marker.png',
    // This marker is 20 pixels wide by 30 pixels tall.
    size: new google.maps.Size(20, 30),
    // The origin for this image is 0,0.
    origin: new google.maps.Point(0,0),
    // The anchor for this image is the base of the image at 0,30.
    anchor: new google.maps.Point(10, 30)
};

Mac OS 10.10 Chrome Version 40.0.2214.115 (64-bit)
Still flickers before the bounce.

Still flickers on Mac OS 10.10.2, Chrome Version 41.0.2272.104 (64-bit).
Why is this issue marked as fixed?

Problem still not fixed.

And still not fixed, running Version 44.0.2403.157 m of Chrome.

Works fine in Edge (WOWWOWWOWWOWWOWWOW)

So I guess MS > Google?

FYI comment #21 solved it, but I decreased the timeout to 775MS.

Comment #32 worked for me, to clarify:

var image = {
    url: 'images/map_marker.png',
    // This marker is 20 pixels wide by 30 pixels tall.
    size: new google.maps.Size(20, 30),
    // The origin for this image is 0,0.
    origin: new google.maps.Point(0,0),
    // The anchor for this image is the base of the image at 0,30.
    anchor: new google.maps.Point(10, 30)
};

var marker = new google.maps.Marker({
    ...
    icon: image,
    animation: google.maps.Animation.DROP
});