Load of nested report failed

Anyone ever gotten this error on an Infomaker report before? This is happening when we open a report that was scheduled using View Reports, and it says load of nested report (name of report object) failed. The report object is there. The report works when run normally, both on my machine and on the report server machine.

Once you click OK on the dialog box, it brings up the rest of the report, but with that part of the report it complained about missing. (The report contains two other nested reports that work fine.) Unless it crashes, which sometimes it does instead of showing you the rest of the report.

This report is scheduled to run at midnight. I'd rather not have to run it manually in the middle of the night. That would be sad. Any ideas?