In the "New Version" of Reports, existing default/standard reports like "My Overdue Activities" (or any "My" related report for that matter) throw an error and will not run when a filter exists for "logged in user".

If you remove the "logged in user" filter and replace it with a specific user by name, the report runs, but when selecting "logged in user" again (which is an existing option in the dropdown menu), the error occurs.

When switching to the "Old Version" of Reports module, the same reports now Run successfully, no issue there, but returning back to "New Reports" and error occurs again immediately.

Note: Yes, you can access a similar look at the same data by simply going to Activities tab and filtering the View to predefined "My Overdue" from the list in this particular example, but it's worth pointing out to support staff as there clearly seems to be a bug in the "New Version" of Reports module with "logged in user" filter option.