       cellkey = "#{col_letter}#{row_nr}"
       yield [ 'tex', "\\node[sDebugJoints] at (#{x},#{y}) {{\\mktsStyleCode{}#{cellkey}}}; ", ]
   #.........................................................................................................
-  yield return
-
-#-----------------------------------------------------------------------------------------------------------
-@_walk_fail_events = ( me ) ->
+  yield [ 'tex', "\\end{scope}\n", ]
+  #.........................................................................................................
+  yield return
+
+#-----------------------------------------------------------------------------------------------------------
+@_convert_fails_to_warnings = ( me ) ->
   for fail in me.fails
     yield [ '.', 'warning', fail, ( copy me.meta ), ]
     yield [ 'tex', '\\par\n', ]

  unless @_should_debug me
    yield return
  @_ensure_joint_coordinates  me
  #.........................................................................................................
  ### TAINT use fixed size like 1mm ###
  for [ col_letter, col_nr, ] from @_walk_column_letters_and_numbers me, 'short'

                 + " -- (#{right},#{bottom});", ]
    yield [ 'tex', "\n", ]
  #.........................................................................................................
  yield [ 'tex', "\\end{scope}\n", ]
  #.........................................................................................................
  yield return

#-----------------------------------------------------------------------------------------------------------
