When I opened the App I used to get a button to create new invoice, and could see live/due/overdue invoices, now I can't seem to access my invoices anywhere?

Hey there, @chiz. Thanks for sharing your concern on the QuickBooks Community page.  

I'd be glad to share with you the steps on how to access and record your invoices in QuickBooks Online (QBO). 

Before we proceed, can you share me with the device you're currently using when creating an invoice? This way, I can provide you with the right steps in accomplishing your task. 

Right now, you can create an invoice by clicking the Hamburger icon in your mobile app. Then, select Invoices and tap the Plus icon. From the Invoice window page, enter your details and then click Save. 

You can also check this video as your reference in recording invoices in QBO. Please note that this is intended for QBO Canada region, however, you can still use the same steps in recording your transaction: How to Record an Invoice in the QuickBooks Mobile App.

Also, you may want to check out this article to learn more about the QBO app features available on supported mobile devices: Compare mobile app features. It contains a comparison chart between Android and iOS devices.
 

If you need any additional assistance with your invoices or anything else, please leave a comment below. Enjoy the rest of your day!