Debrief generated empty PDF

[MarkVaitzman]

Describe the bug
AFter executing an operation getting into debrief plugin, clicking on the operation, seeing the graph - but when exporting a pdf - getting empty pdf page. While exporting json gives me the full info.

To Reproduce
Run an operation
go to Debrief plugin
choose the operation
clock export PDF

Expected behavior
Expected PDF report
Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: ubuntu 20.04
• Browser Firefox
• Version 4..1.0 (latest)

Additional context
Let me know which logs you need

[clenk]

Sorry for the delayed response. If you have any errors from the terminal where the caldera server is being run, that would help.

Another user has reported a similar issue when the operation has "a long lists of results in my execution of T1057". Also:

it just won't allow the full report. I just deselect the Operation Facts Table now, the report loads. No details related to the operation facts so, I suspect it has a limit on the allowed pages
BTW JSON report downloads everything. It is just an issue with the pdf report.

ERROR: (debrief_gui.py:196 build_pdf) object of type ínt' has no len()