Recently I've also faced the problem with disappearing icon. I tried to 
preserve apk size and created one icon, put it into drawable folder and 
then created icon.xml files pointing to the original icon.
XML files were created in the specific folders (-hdpi, -xhdpi, ...). I 
published the apk and received complaints about icon disappearing from 
launcher screens. I copied icon back to the specific folders, removed xml 
links and now everything is fine.

On Tuesday, April 23, 2013 10:52:50 AM UTC+4, Andrei Ponomarenko wrote:
>
> The problem happens only on 4.2.x devices. After the upgrade of our app 
> the app launcher icon is invisible. It flashes for a split second during 
> the upgrade (adb install -r NewVersion.apk) but then removed.
> If I force stop the Launcher it appears. It also appears on it's own after 
> a long time - a few hours. Obviously it is not acceptable for user 
> installations. Fresh installation doesn't have this problem.
> What could have possibly caused it - we have renamed the main activity of 
> our product and changed the icon, but we are not sure is this really the 
> reason. Like I mentioned it wasn't the problem at all until 4.2.2 came 
> along. Any suggestion on what can be done in the project to make the new 
> icon show up right away is very welcome. 
> Regards,
> Andrei
>

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