Dear Support Team,
Rowspans seem to be a tough one, again we are facing issues using multiple Rowspans in PdfGrid.
Rows and cells are missing in different ways, depending on the Version of Spire.PDF / Spire.Office.
Issue example using spire.office.v5.12.8:
The following post seems to be related:
https://www.e-iceblue.com/forum/rowspan-truncated-if-higher-than-page-t8302.html
Additionally, find attached some PDF outputs from different Spire Versions and a C# code for you to retrace the issue.
Best regards,
Christian