diff --git a/ptulsconv/broadcast_timecode.py b/ptulsconv/broadcast_timecode.py
index 46bbc78..a19de9d 100644
--- a/ptulsconv/broadcast_timecode.py
+++ b/ptulsconv/broadcast_timecode.py
@@ -29,6 +29,10 @@ def smpte_to_frame_count(smpte_rep_string: str, frames_per_logical_second: int,
     assert frames_per_logical_second in [24, 25, 30, 48, 50, 60]
 
     m = re.search("(\d?\d)[:;](\d\d)[:;](\d\d)([:;])(\d\d)(\.\d+)?", smpte_rep_string)
+    
+    if m is None:
+        return None
+    
     hh, mm, ss, sep, ff, frac = m.groups()
     hh, mm, ss, ff, frac = int(hh), int(mm), int(ss), int(ff), float(frac or 0.0)
 
diff --git a/ptulsconv/docparser/doc_entity.py b/ptulsconv/docparser/doc_entity.py
index 8fd1f76..04beb3e 100644
--- a/ptulsconv/docparser/doc_entity.py
+++ b/ptulsconv/docparser/doc_entity.py
@@ -21,7 +21,8 @@ class SessionDescriptor:
 
     def markers_timed(self) -> Iterator[Tuple['MarkerDescriptor', Fraction]]:
         for marker in self.markers:
-            marker_time = self.header.convert_timecode(marker.location)
+            marker_time = Fraction(marker.time_reference, int(self.header.sample_rate))
+            #marker_time = self.header.convert_timecode(marker.location)
             yield marker, marker_time
 
     def tracks_clips(self) -> Iterator[Tuple['TrackDescriptor', 'TrackClipDescriptor']]:
diff --git a/tests/functional/test_pdf_export.py b/tests/functional/test_pdf_export.py
index 9232b82..5559473 100644
--- a/tests/functional/test_pdf_export.py
+++ b/tests/functional/test_pdf_export.py
@@ -8,21 +8,21 @@ import glob
 
 from ptulsconv import commands
 
-# class TestBroadcastTimecode(unittest.TestCase):
-#     def test_report_generation(self):
-#         """
-#         Setp through every text file in export_cases and make sure it can 
-#         be converted into PDF docs without throwing an error
-#         """
-#         for path in glob.glob(os.path.dirname(__file__) + "/../export_cases/*.txt"):
-#             tempdir = tempfile.TemporaryDirectory()
-#             os.chdir(tempdir.name)
-#             try:
-#                 commands.convert(path, major_mode='doc')
-#             except:
-#                 assert False, "Error processing file %s" % path
-#             finally:
-#                 tempdir.cleanup()
+class TestBroadcastTimecode(unittest.TestCase):
+    def test_report_generation(self):
+        """
+        Setp through every text file in export_cases and make sure it can 
+        be converted into PDF docs without throwing an error
+        """
+        # for path in glob.glob(os.path.dirname(__file__) + "/../export_cases/*.txt"):
+        #     tempdir = tempfile.TemporaryDirectory()
+        #     os.chdir(tempdir.name)
+        #     try:
+        #         commands.convert(path, major_mode='doc')
+        #     except:
+        #         assert False, "Error processing file %s" % path
+        #     finally:
+        #         tempdir.cleanup()
 
 
 
diff --git a/tests/unittests/test_tag_compiler.py b/tests/unittests/test_tag_compiler.py
index 78c6b2e..db4e4fb 100644
--- a/tests/unittests/test_tag_compiler.py
+++ b/tests/unittests/test_tag_compiler.py
@@ -97,14 +97,14 @@ class TestTagCompiler(unittest.TestCase):
 
         markers = [doc_entity.MarkerDescriptor(number=1,
                                                location="01:00:00:00",
-                                               time_reference=48000 * 60,
+                                               time_reference=48000 * 3600,
                                                units="Samples",
                                                name="Marker 1 {Part=1}",
                                                comments=""
                                                ),
                    doc_entity.MarkerDescriptor(number=2,
                                                location="01:00:01:00",
-                                               time_reference=48000 * 61,
+                                               time_reference=48000 * 3601,
                                                units="Samples",
                                                name="Marker 2 {Part=2}",
                                                comments="[M1]"