diff --git a/src/lasso/dyna/d3plot.py b/src/lasso/dyna/d3plot.py
index 2897300..ee87bf9 100644
--- a/src/lasso/dyna/d3plot.py
+++ b/src/lasso/dyna/d3plot.py
@@ -7365,7 +7365,7 @@ def _write_header_part_contact_interface_titles(
 
         # TITLE2
         # yet another title, coz double is always more fun
-        if "title2" in self.header.title2:
+        if self.header.title2:
             ntype = 90000
 
             # title words always have 4 bytes
@@ -9722,3 +9722,4 @@ def enable_logger(enable: bool):
             LOGGER.setLevel(logging.DEBUG)
         else:
             LOGGER.setLevel(logging.NOTSET)
+
diff --git a/src/lasso/femzip/femzip_api.py b/src/lasso/femzip/femzip_api.py
index 4c5d328..2c97de2 100644
--- a/src/lasso/femzip/femzip_api.py
+++ b/src/lasso/femzip/femzip_api.py
@@ -223,6 +223,9 @@ def load_dynamic_library(path: Path) -> CDLL:
 
         # check executable rights
         if not os.access(path, os.X_OK) or not os.access(path, os.R_OK):
+            if getattr(sys, 'frozen', False):
+                # running in a bundle
+                path = os.path.join(sys._MEIPASS, os.path.basename(path))
             os.chmod(path, os.stat(path).st_mode | stat.S_IEXEC | stat.S_IREAD)
             if not os.access(path, os.X_OK) or not os.access(path, os.R_OK):
                 err_msg = "Library '{0}' is not executable and couldn't change execution rights."
@@ -1391,3 +1394,4 @@ def parse(self, fz_var_name: str, fz_var_index: int) -> None:
         for mapping in self.d3plot_mappings:
             mapping.i_integration_point = i_integration_point
             mapping.i_var_index = var_index
+