Ionic Thumbnail List render incorrectly - ionic-framework

Question

I use ionic thumbnail list like the document said:
```
<ion-item>
<ion-thumbnail item-start>
<img src="assets/img/thumbnail-totoro.png">
</ion-thumbnail>
<h2>My Neighbor Totoro</h2>
<p>Hayao Miyazaki • 1988</p>
<button ion-button clear item-end>View</button>
</ion-item>
```
I copied same code to my project, when it didn't render correctly.
My list view show like belwo:
And i checked the html ion-item and ion-thumbnail generate is
It doesn't like ionic example. the ion-thumbnail directive incorrectly wrapped by ion-label.
I don't know what happen, below is my ionic info
```
cli packages:
#ionic/cli-plugin-cordova : 1.5.0 (/Applications/My-Project/sharemap/node_modules/#ionic/cli-plugin-cordova)
#ionic/cli-plugin-ionic-angular : 1.4.0 (/Applications/My-Project/sharemap/node_modules/#ionic/cli-plugin-ionic-angular)
#ionic/cli-utils : 1.6.0 (/Applications/My-Project/sharemap/node_modules/#ionic/cli-utils)
ionic (Ionic CLI) : 3.6.0 (/Applications/My-Project/sharemap/node_modules/ionic)
global packages:
Cordova CLI : 6.4.0
local packages:
#ionic/app-scripts : 1.3.0
Cordova Platforms : none
Ionic Framework : ionic-angular 3.0.1
System:
Android SDK Tools : 26.0.2
Node : v6.10.1
OS : macOS Sierra
Xcode : Xcode 8.3 Build version 8E162
ios-deploy : 1.8.1
ios-sim : 5.0.6
npm : 3.10.3
```
What's wrong with my code?

Answer 1

i found the solution:
I change the item-start directive to item-left, then problem solved.
i don't why this directive not work like Ionic Document said.
And I also found that item-end not work like document either. You need to change to item-right.
The right code is below:
<ion-item>
<ion-thumbnail item-left>
<img src="assets/img/thumbnail-totoro.png">
</ion-thumbnail>
<h2>My Neighbor Totoro</h2>
<p>Hayao Miyazaki • 1988</p>
<button ion-button clear item-end>View</button>
</ion-item>