Hi there, @EE.
I'm happy to know that your issues about attaching attachments have been corrected. Please know that the Community forum is always open to help you with any QuickBooks help you need.
On the other hand, if you still get the same issue in the future, I recommend contacting our QuickBooks Support Team. This way, they can further check on this matter and provide in-depth troubleshooting steps to get this resolved.
Wishing you all the best!