Fiddle:
https://fiddle.sencha.com/#view/editor&fiddle/2qa1
Steps:
1. Click button "Remove SegmentedButton's items"
2. There is an error in the console
111.png
Workaround:
Code:Ext.define(null, { override: 'Ext.SegmentedButton', doRemove: function(item, index, destroy) { var me = this; if (!me.destroying && !item.destroyed && item.getPressed()) { item._pressed = false; } me.callParent(arguments); } });