Ion-slides loop property doesn't work with ngFor

yes is frustrating for me now, thanks for your time
info:

Ionic:

Ionic CLI : 5.4.16 (/usr/local/lib/node_modules/ionic)
Ionic Framework : @ionic/angular 4.8.1
@angular-devkit/build-angular : 0.801.3
@angular-devkit/schematics : 8.1.3
@angular/cli : 8.1.3
@ionic/angular-toolkit : 2.0.0

Cordova:

Cordova CLI : 6.3.0
Cordova Platforms : ios 4.2.1
Cordova Plugins : cordova-plugin-ionic-keyboard 2.2.0, cordova-plugin-ionic-webview 4.2.1, (and 4 other plugins)

Utility:

cordova-res : not installed
native-run : not installed

System:

ios-deploy : 1.9.0
NodeJS : v10.15.3 (/usr/local/bin/node)
npm : 6.4.1
OS : macOS High Sierra