Thanks for getting back on this thread, Rovira. I'm here to share additional information about the unusual behavior when running reports in QuickBooks Online (QBO).

As I've checked my resources here, I've seen similar cases relating to your concern when pulling up reports. I can see how relevant it is for you to determine the financial stability of your business. Rest assured that the team has begun the initial analysis and is working hard to resolve the issue.

In the meantime, I'd suggest reaching out to our live support via chat and request for a transfer to talk with a Spanish representative to be added to the list of affected users. They can check and pull up your account in a secure environment to identify the root cause of the issue. 

Moreover, I've added this helpful reference that you can use in the future to guide you on how to memorise reports after customising them: How to create memorised A/R reports with email reminders. It also includes scheduled email reminders.

Let us know if you have additional questions when running a report. We'd be glad to welcome you back here on this thread. Keep safe!