diff --git a/docs/examples/poincare.ipynb b/docs/examples/poincare.ipynb
index 818e420..751d663 100644
--- a/docs/examples/poincare.ipynb
+++ b/docs/examples/poincare.ipynb
@@ -5,8 +5,7 @@
    "id": "e55d344d-fbf8-495b-a88d-db0c89d41d0e",
    "metadata": {},
    "source": [
-    "# How to create a poincare plot\n",
-    "\n"
+    "# How to create a poincare plot"
    ]
   },
   {
@@ -142,14 +141,6 @@
     "    plt.gca().set_aspect(1)"
    ]
   },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "c5cf62fa-2a66-4e2f-ba33-6bf624fb6535",
-   "metadata": {},
-   "outputs": [],
-   "source": []
-  },
   {
    "cell_type": "markdown",
    "id": "abb1860f-ffae-45bf-a1c5-52c32d50a91f",
@@ -197,7 +188,7 @@
     "            else:\n",
     "                print(f\"Found: {new}\")\n",
     "                found.append(new)\n",
-    "        except FixPointConvergenceError, OutOfDomainError:\n",
+    "        except (FixPointConvergenceError, OutOfDomainError):\n",
     "            # Not close to a fix point\n",
     "            pass\n",
     "        except IndexError:\n",
@@ -212,7 +203,9 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "found"
+    "plt.figure()\n",
+    "plt.scatter(pnc0[..., 0], pnc0[..., 1], s=0.1, color=\"black\")\n",
+    "plt.scatter(*np.array(found).T, s=1, color=\"red\")"
    ]
   }
  ],
diff --git a/docs/examples/setup_plt.py b/docs/examples/setup_plt.py
index b8c0521..ee52595 100644
--- a/docs/examples/setup_plt.py
+++ b/docs/examples/setup_plt.py
@@ -6,6 +6,6 @@
     get_ipython().run_line_magic("matplotlib", "inline")  # noqa: F821
     figsize = 10.0
 else:
-    get_ipython().run_line_magic("matplotlib", "notebook")  # noqa: F821
+    get_ipython().run_line_magic("matplotlib", "inline")  # noqa: F821
     figsize = 6.0
 plt.rcParams["figure.figsize"] = [figsize, figsize]
diff --git a/requirements.txt b/requirements.txt
index 61eb168..e03c6cf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,3 +25,5 @@ sphinx-argparse-cli ; python_version > "3.6"
 nbsphinx >= 0.8.6
 ipykernel
 ipywidgets
+
+tqdm
diff --git a/setup.cfg b/setup.cfg
index cbf783a..9683b84 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -58,6 +58,7 @@ docs =
     sphinx >= 1.4
     sphinx-argparse-cli
     nbsphinx >= 0.8.6
+    tqdm
 
 full =
     matplotlib>=3.4
@@ -67,6 +68,7 @@ full =
     sphinx-argparse-cli
     nbsphinx >= 0.8.6
     numba
+    tqdm
 
 [build_sphinx]
 project = $metadata.name
diff --git a/xemc3/core/flt_emc_like.py b/xemc3/core/flt_emc_like.py
index b1f7e16..7ed5956 100644
--- a/xemc3/core/flt_emc_like.py
+++ b/xemc3/core/flt_emc_like.py
@@ -293,4 +293,4 @@ def trace4(self, pnts, num, ood=False):
             pnts = np.array(pnts)
         if len(pnts.shape) == 1:
             return trace4(pnts, self.meshes, num, ood=ood)
-        return np.array([trace4(p, self.meshes, num) for p in pnts])
+        return np.array([trace4(p, self.meshes, num, ood=ood) for p in pnts])