diff --git a/.github/workflows/test_python.yml b/.github/workflows/test_python.yml
index 6db2d816..8c45dd32 100644
--- a/.github/workflows/test_python.yml
+++ b/.github/workflows/test_python.yml
@@ -8,6 +8,8 @@ on:
     branches: [ master ]
   pull_request:
     branches: [ master ]
+  schedule:
+    - cron: '0 8 * * MON'
   workflow_dispatch:
 
 jobs:
@@ -33,9 +35,9 @@ jobs:
     - name: Trial imports
       run: python -c 'import pytools as pt'
 
-  import-matrix:
+  ubuntu_22_04_versions:
 
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     strategy:
       fail-fast: false
       matrix:
diff --git a/README b/README
index 4c287be0..6931f9fe 100644
--- a/README
+++ b/README
@@ -66,6 +66,10 @@ export PTOUTPUTDIR=/proj/USERNAME/Plots/
 #################################################
 https://github.com/fmihpc/analysator/wiki
 
+# Analysator documentation on the link:
+#################################################
+https://fmihpc.github.io/analysator/
+
 # For citations, use the DOI or the ready-made button the the right in GitHub!
 #################################################
 https://doi.org/10.5281/zenodo.4462514
diff --git a/pyPlots/colormaps.py b/pyPlots/colormaps.py
index dba7fdfe..8deec41b 100644
--- a/pyPlots/colormaps.py
+++ b/pyPlots/colormaps.py
@@ -1172,9 +1172,13 @@
     _cm_name = _cm_name[:-4]
     _cm_data = np.loadtxt(_f)
     _cm = LinearSegmentedColormap.from_list(_cm_name, _cm_data)
-    if Version(mpl_version) > Version("3.5.0"):
-        mcm.register(_cm)
-        mcm.register(_cm.reversed())
-    else:
-        plt.register_cmap(cmap=_cm)
-        plt.register_cmap(cmap=_cm.reversed())
+    try:
+        if Version(mpl_version) > Version("3.5.0"):
+            mcm.register(_cm)
+            mcm.register(_cm.reversed())
+        else:
+            plt.register_cmap(cmap=_cm)
+            plt.register_cmap(cmap=_cm.reversed())
+    except Exception as e:
+        logging.warning("Problem registering colormap " + _cm_name + ". Produced exception was:\n"+str(e))
+