Authoring version 3.24092.17 of PowerApps
The "focus out" option in the trigger output of the Text Input (Preview) control in PowerApps is not working as expected. In previous versions, the OnChange event was only triggered when the mouse clicked outside the Text Input area. Now, the OnChange event is triggered after staying in the input box for about 2 seconds, which seems like 'focus out' is equal to 'delay'. I look forward to a fix for this issue.
Felix