Can I have help on the drop down menus are gone only add customers is in the invoice & receive payments

I recognize the urgency to resolve the issue with the drop-down menus that are not responsive in multiple areas of QuickBooks. 

We've received similar cases and reports about this. Know that our engineer is currently working on a fix for it. We appreciate your patience as we investigate this further.

For now, I recommend contacting our QuickBooks Support Team so that they can add you to the list of the affected users. This way, you'll get notified once there's a fix or progress update about the issue.

Here's how:

1. Go to the Help menu, then click the Search tab.
2. Click Contact Us.
3. Select a topic, then enter a brief description of your concern and hit Continue.
4. Choose either Chat with us or Have us call you and start connecting with them.

Please refer to this article for more details about the support schedule: QuickBooks Online Support.

I'm adding these articles you can use in the future:

• Record invoice payments in QuickBooks Online.
• Record a customer refund in QuickBooks Online.

Tag me in the comment section if you need help managing and navigating options in your QuickBooks invoices. I'm always available to assist you. Stay safe!