I'm having a similar problem.
I compile using "Release" mode.
I copy the result.apk to my Samsung Galaxy Note 4 running Android 4.4.4
In the Application Manager,
the default Android icon is shown, not my application's icon.
For the app and the preview it * does * show my app's icon.
Back in the virtual / emulator world, the 4.2.2 virtual phone * does * show the right icon in Application Manager.
I have deleted the manifest file and let B4A recreate it. This is what is shows:
'This code will be applied to the manifest file during compilation.
'You do not need to modify it in most cases.
'See this link for for more information: http://www.b4x.com/forum/showthread.php?p=78136
AddManifestText(
<uses-sdk android:minSdkVersion="5" android:targetSdkVersion="14"/>
<supports-screens android:largeScreens="true"
android:normalScreens="true"
android:smallScreens="true"
android:anyDensity="true"/>)
SetApplicationAttribute(android:icon, "@drawable/icon")
SetApplicationAttribute(android:label, "$LABEL$")
SetApplicationAttribute(android:theme, "@android:style/Theme.Holo")
'End of default text.
Any thoughts?