I appreciate you joining in this thread, ssykes1.

We're receiving reports that other users are getting this issue as well. We would like to inform you that this has already been escalated to our Engineering Team. While they do, I would advise you to get in touch with our QuickBooks Online Support.

This way our engineers can add your account information to the list of affected users and attach your case to the ongoing investigation (INV-56731). Any progress will be communicated via email.

As a way around, you can check for hidden filters on the customer list. You will see a small clickable link at the top of the page that says "clear filter" see https://jira.intuit.com/secure/attachment/2400252/2400252_2021-03-30_10-45-30.gif for a gif of the process. 

You can use our live messaging option from 6:00 AM to 6:00 PM on weekdays and 6:00 AM until 3:00 PM on Saturdays. To ensure we address your concern on time, check out our support hours. Here's how to get in touch or chat with us:

1. Click the Help (?) icon.

2. Choose Contact Us.

3. Enter a  brief description of your situation in the What can we help you with? area, then click Let's talk.

4. You'll be presented with a few options for connecting with Intuit. Select Chat with us.

Kindly update me on how things go by adding another comment below. I want to make sure you're all set and able to see your customers. I'm here if you need further guidance. Have a great day! All the best.