Is anyone having major problems sending RTI's with error messages showing under 'nest' and also 'tax codes need updated'. I've been on the phone several times to resolve

I wish I could make it better, info1570

Let's perform some steps to fix the issue. Sometimes your browser is full of frequently accessed page resources that may cause some unusual responses. To isolate this, try logging into your QuickBooks Online (QBO) account in a private window (incognito). Here's how:

• Press Ctrl + Shift + N (Google Chrome).
• Ctrl + Shift + P (Firefox).
• Control + Option + P (Safari).

Once signed in, you can double-check if you're still getting the error. If everything is already working, return to your default browser and clear the cache to speed up the loading process. Every so often the cache becomes overwhelmed with older data which can potentially cause viewing and performance issues. Clearing it will refresh the system, and you'll be able to work with a clean slate. However, if the issue persists, try using other supported browsers. 

Please read this article for more information: Submit pension reports in QuickBooks Online Standard Payroll.

Let me also share this link so you can access the Help articles for Standard Payroll: QuickBooks Online Standard Payroll Hub.

Feel free to let me know if you have any other concerns about QuickBooks Online. I'll be around if you need anything else.