After researching your issue when printing a reconciliation report, I see that our Product Development Team is aware of the issue and is working to resolve it. I recommend getting in touch with our QuickBooks Online Support Team so that you can be added to the list of affected users and get notified when there's an update available. I've outlined the steps to get in touch below:
In the meantime, you can use an alternative supported browsers like Safari, Firefox, Chrome, or Microsoft Edge. Then sign in to QuickBooks Online, and there you can utilize the Search icon on the upper right to pull up the reconciliation report.
Also, the case code of the investigation is INV-41724, where customers are unable to print the reconciliation report using the desktop App. Please follow the steps provided by Michael K to contact our Care Support Team to attach your account to the investigation. This way, you'll be notified via email once our engineers have fixed the issue.