Hello and welcome to the Community, MB1968
We're not aware of any widespread issues with QuickBooks Online Core Payroll.
So that we can look further into the error and reconciliation issues, please consider contacting our team directly by live messaging or on 0808 234 5337.
The team available here will have access to set up a remote screenshare using secure SmartLook software. This will help them to quickly view and get to the root cause.
Thanks for reaching Intuit QuickBooks support. We'll be around if you have any further queries.
