Thats the funny thing.. The target version is already set to 8.1. Look at the following snippet from the xml:<br /><br /><template xmlns="http://www.xfa.org/schema/xfa-template/2.6/"><br /> <?formServer defaultPDFRenderFormat acrobat8.1static?><br /> <?formServer allowRenderCaching 0?><br /> <?formServer formModel both?><br /><br />The Report palette is already enabled too and it says when Previewing form:<br /><br />Generating PDF Document...<br />PDF generated successfully.<br /><br />0 warnings/errors reported.<br /><br />However I still get the described warnings in the Log file. Is it possible that theres some "garbage" in the xml, which is first "discovered" when rendering the form through renderPdfService or AssembleService?<br /><br />Fragments are included in the in the xdp but they are also set to version 8.1 and I get no warnings here either.