QB Issue Resolution:

Let’s perform some steps so you can sort out your invoices to the appropriate categories.

It could be your browser has too much historical data from previously visited websites. This may impact the product’s functionalities, that’s why you’re unable to categorize your invoices.

To start with, let’s access your account through a private browser since it doesn’t store data in the cache. You can press Ctrl + Shift + N on your keyboard to open it.

Then, sign in to your account and visit the Invoices menu. If it works, go back to your regular browser and clear its cache. This is to make sure this behavior won’t happen in the future.

If private browsing doesn’t work, I’d suggest using other supported browsers. For more details, you can go through this article: System Requirements for QuickBooks Self-Employed.

Resolution for Issue 'A couple days ago I lost the functionality to sort my invoices by any of the categories. I am running it on a PC through Google Chrome.' available: Yes (Solved).
Source: Intuit Community forum.

A couple days ago I lost the functionality to sort my invoices by any of the categories. I am running it on a PC through Google Chrome.: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.

Support for Invoices menu
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Error Recovery for Invoices menu [Canada]
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