Hello blenkhn,
I appreciate you taking the time to go into detail about the issues you're seeing when working with QuickBooks Desktop 2016 on your system. It sounds like you're happy with that edition of the software, and I know how useful it can be to stick with the version of the software that's working. It's important to me that you're able to get back to work.
My recommendation to you in this instance is to touch base with your IT person or to consult an IT person if you don't have one, so that you can discuss the kinds of files you're seeing and if you need them all in the system. I see from another thread you commented on that you had tried the troubleshooting suggested there without success, so an IT person is your next best bet.
The reason I say this is because QuickBooks Desktop 2016 is no longer a supported product for QuickBooks Desktop tech support, which is due to the age of the software. No updates are being released for that edition and it's also difficult to tell if an issue is simply being caused by the age of the program. Here's an article about our discontinuation policy if you'd like to read it: QuickBooks Desktop service discontinuation policy and upgrade information
As the article mentions, upgrading to a newer edition of QuickBooks Desktop will help ensure that things are running smoothly and you can get support. You're welcome to purchase QuickBooks Desktop from a third-party retailer, or buy a license or sign up for a subscription through Intuit directly. The following page highlights our monthly subscription options: QuickBooks Desktop Pro and Premier. For annual subscriptions or outright purchase options, please use the number at the top of that page to connect with our sales team instead.
I hope this helps you with moving forward with this error. Take care!
