We can get the buttons working by resetting the QuickBooks Online Desktop App's cache.
If clearing the cache doesn't work, let's reinstall the app.
Doing these steps ensure that you've got the updated QBO Windows App. Log in and click on the upper bar to create bills, invoices, etc.
Keep us posted if you've got any additional questions.
I can feel how inconvenient it is, @info419. I've checked and confirmed that there's a reported issue with other users getting the same performance while trying to use the QBO Desktop App. Our product team is already investigating why you're experiencing this when using the Desktop app.
While we're still working together to fix the issue, let's have you access your QBO company via your mobile browser or a supported web browser until we've fixed this for you. I'd also suggest you contact our QuickBooks Support team and let us add you to the list of affected users so you'll receive updates about its status.
Here's how you can get through us:
We appreciate your patience. Please don't hesitate to add a comment below if you have any other concerns. I'm always here to help.