We cannot reproduce this on demand; however, certain times we get an influx of jobs to convert HTML to PDF. At these times, CPU of our servers are around 90%. We trap all calls to EO.PDF and can confirm no exceptions are raised; however, what appears to be a 'blank' PDF is generated.
Here is an example of one of these PDF documents:
Generated PDF FileAlthough we cannot reproduce this issue; I'm hopeful you'll be able to provide some guidance so this doesn't happen in the future.