Hello there, loyal.
Since there's no reported issue with this error in categorizing the transaction. I recommend contacting our Customer support team to investigate the root cause of the problem. They can provide you specific guidance on how to resolve it.
Here's how:
1. Sign into your QuickBooks Online company. Select Help (?).
2. Choose either tab: Assistant or Talk to a Human.
3. Search or click Contact Us.
4. Start a chat with a support expert.
Check this article for more detailed steps and support hours: QuickBooks Online Support.
Additionally, I've added this article that'll help you review your accounts in QuickBooks to make sure they match your bank and credit card statements: Reconcile an account in QuickBooks Online.
Should you need additional assistance in categorizing, feel free to post it here in the Community. Keep safe!