When a plugin implements the (deprecated) endRenderingHander() and calls Func::renderText() in it, verbatim blocks stored in the global variable {session}->{_removed} are lost. Making the blocks map local to getRenderedVersion() cures the symptoms again.

--- lib/TWiki/Render.pm (revision 7418)
+++ lib/TWiki/Render.pm (working copy)
@@ -987,9 +987,10 @@
     my $removedComments = {};
     my $removedScript = {};
     my $removedHead = {};
+    my $verbatims = {};

     $text = $this->takeOutBlocks( $text, 'finished_rendering', $session->{_removed} );
-    $text = $this->takeOutBlocks( $text, 'verbatim', $session->{_removed} );
+    $text = $this->takeOutBlocks( $text, 'verbatim', $verbatims );

     $text = $this->takeOutProtected( $text, qr/<\?([^?]*)\?>/s,
                                      $removedComments );
@@ -1220,7 +1221,7 @@
     $plugins->endRenderingHandler( $text );

     # replace verbatim with pre in the final output
-    $this->putBackBlocks( \$text, $session->{_removed}, 'verbatim', 'pre', \&verbatimCallBack );
+    $this->putBackBlocks( \$text, $verbatims, 'verbatim', 'pre', \&verbatimCallBack );
     $this->putBackBlocks( \$text, $session->{_removed}, 'finished_rendering', '');

     $text =~ s|\n?<nop>\n$||o; # clean up clutch

But I am not sure if this is the right fix.

(Don't recommend not to do that.)

it might take a little while, but i'll look into it -- SD

svn:7446 -- SD