FOP Code for pdf generation: table cells are rendered weird -

i use fop code generate .pdf files. need dynamically generate table based on user input. in cms <table>, <tr> , <td>are defined following:

td:

<fo:table-cell padding-top="0pt" padding-left="5.4pt" padding-bottom="0pt" padding-right="5.4pt"  border-left-style="solid" border-right-style="solid"  border-left-color="$cms_value(bordercolor)$" border-right-color="$cms_value(bordercolor)$" border-left-width="0.0pt" border-right-width="0.0pt" border-top-style="solid" border-bottom-style="solid" border-top-color="$cms_value(bordercolor)$" border-bottom-color="$cms_value(bordercolor)$" border-top-width="0.0pt" border-bottom-width="0.0pt"> <fo:block font-family="$cms_value(mainfontfamily)$" color="$cms_value(mainfontcolor)$" font-size="$cms_value(fontsize)$pt" language="de" text-align="left">     <fo:inline font-weight="normal" font-size="$cms_value(fontsize)$pt">     <fo:leader leader-length="0pt"/>           $cms_value(#content)$     </fo:inline> </fo:block> </fo:table-cell> 

table:

<fo:table table-layout="fixed" font-family="$cms_value(mainfontfamily)$" color="$cms_value(mainfontcolor)$" start-indent="0pt" border-style="solid"  border-top-color="$cms_value(bordercolor)$" border-top-width="0.0pt" border-left-color="$cms_value(bordercolor)$" border-left-width="0.0pt" border-bottom-color="$cms_value(bordercolor)$" border-bottom-width="0.0pt" border-right color="$cms_value(bordercolor)$" border-right-width="0.0pt">  $cms_for(col,[1..#table.cols])$     <fo:table-column column-number="$cms_value(col)$" column-width="$cms_value(100.0/#table.cols)$%"/> $cms_end_for$         <fo:table-body start-indent="0pt" end-indent="0pt">     $cms_value(#content)$ </fo:table-body> </fo:table> 

tr:

<fo:table-row> $cms_value(#content)$ </fo:table-row> 

this results in table weirdly formatted (see attached image). added red borders around table cell make more clear. big cell in middle 1 cell , should not have huge gap within text after 3rd row (i typed in dummy text...).

why happen , how can fix it?

i played around <fo:leader/>, <line-height> , other stuff, nothing of seem cause of "split up" cells.

thanks!