diff -r 4596357d002d -r 4d5df8d35a95 QTfrontend/ui/page/pageoptions.cpp
--- a/QTfrontend/ui/page/pageoptions.cpp	Tue May 07 16:08:27 2019 +0200
+++ b/QTfrontend/ui/page/pageoptions.cpp	Tue May 07 18:45:14 2019 +0200
@@ -1218,6 +1218,7 @@
             QModelIndexList mdl = binds->match(binds->index(0, 0), Qt::UserRole + 1, value, 1, Qt::MatchExactly);
             if(mdl.size() == 1) binder->setBindIndex(i, mdl[0].row());
         }
+        binder->checkConflicts();
     }
 
     currentTab = index;
@@ -1258,4 +1259,5 @@
         if(ret != -1)
             bindUpdated(i);
     }
+    binder->checkConflicts();
 }