Thanks for letting us know. I'm here to help ensure you're able to generate annual forms so you can print your year end reports successfully.
We haven't received any similar reports about this issue, and I appreciate you for taking the time to report this. I suggest performing some troubleshooting steps by opening your browser in incognito/private mode. This will help determine if this is caused by a browser.
Here are the keyboard shortcuts to open a private browser:
Google Chrome: press Ctrl+Shift+N
Mozilla Firefox: press Ctrl+Shift+P
Internet Explorer: press Ctrl+Shift+P
Safari: press Command+Shift+N
If you're able to generate annual forms and print the year end reports with private browser, I suggest clearing your browser's cache to start fresh. The next time you log in to QuickBooks Online, your browser will download fresh copies of everything you see on each page. Any cache-related issues should be cleared up.
If the issue persists, I recommend calling our QuickBooks Online Support Team to investigate this further. They can also create a new investigation for this issue and once it has been open, you'll be receiving an email notification about the update and progress.