Happy to have you here. If you're having trouble printing your 1099s in QuickBooks Online, it may happen for a variety of reasons. To better assist you with your issue, I'd like to gain some additional information. What happens when trying to print your 1099s? Do you receive an error message? If you could also provide screenshots of your issue, that would help out, as well.
In the meantime, I recommend checking out these awesome resources:
I also recommend clearing out your cache and cookies to see if that may be causing your issue. Your browser stores these files to speed up websites, but over time can become outdated. This can result in issues like printing in QuickBooks Online and other websites. Just click on your browser of choice below to get the steps: