Collapse Table Borders have issue

[MeginMelkias]

I have lots of rows to display in PDF. Table design is working except the collapse Table border in some rows .it show some spaces between joining the rows.

[dmk99]

I've noticed this issue before. Do you have anything else on the same page as the table e.g. a TextView (for a title) or something similar?

If you do, try removing that and see if it fixes up the odd row borders.
I have a feeling it could be related to rounding when doing the calculations for the widths and heights.