Try running ionic resources -s to generate splashscreen many times, the task is not complete, some splashscreen not generate successfully.
My splash.png file is about 3Mb (2732px X 2732px), does it have something to do with the file size?
My system info:
global packages:
@ionic/cli-plugin-proxy : 1.3.1
@ionic/cli-utils : 1.4.0
Cordova CLI : 7.0.1
Ionic CLI : 3.4.0
local packages:
@ionic/app-scripts : 1.3.12
@ionic/cli-plugin-cordova : 1.4.0
@ionic/cli-plugin-ionic-angular : 1.3.1
Cordova Platforms : android 6.2.3 ios 4.4.0
Ionic Framework : ionic-angular 3.5.0
System:
Node : v8.0.0
OS : OS X El Capitan
Xcode : Xcode 8.2.1 Build version 8C1002
ios-deploy : 1.9.1
ios-sim : 5.0.13
npm : 5.0.0