Hello, Ulric.
I can imagine the hurdle you've been through when trying to connect your Standard bank to QuickBooks Online. Please know that this isn't the kind of impression that we'd like you to have. I'll ensure you get routed in the right direction of support to get this sorted out.
As mentioned by my peer above, there's an ongoing investigation that users also encountered the same issue. Thus, it's the reason why the error persists. Please know that our team is aware of this matter and is currently implementing measures to fix it.
I appreciate the steps you've performed to fix this issue. But as of now, I recommend contacting our QuickBooks Online Support Team to add your account details to the list of affected users. This way, they'll be able to pull up your account in a safe environment and further investigate this concern.
Also, please check our available hours when contacting support to ensure we address your concern promptly.
In the meantime, here's an article you can utilize on how to upload your transactions manually from the bank: Manually upload transactions into QuickBooks Online.
Please bear with us as we work on this. Keep me posted if you still have questions or concerns about managing your reports or other QuickBooks Online-related tasks. I'll be around for you. Take care always.
