Hi there, @TNT1.
I appreciate you trying some tests and letting us know the results. However, since you're repeatedly getting the error code OLSU-1013, I recommend reaching out to our phone support. They can utilize more tools, such as screen sharing, to help us investigate the cause of the error. They can also create an investigation ticket if there are other customers experiencing the same thing.
To get their most current contact details, you can click this link: Contact the QuickBooks Online Customer Support team.
Let me know how the call went, TNT1. I'm still here to offer assistance if you have other concerns about QuickBooks. Have a good one.
