diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index f7884ad6..e311eb21 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -1617,6 +1617,8 @@ void MainWindow::onNewMapCreated() {
     editor->project->saveMap(newMap);
     editor->project->saveAllDataStructures();
 
+    loadProjectCombos(); // need to maybe repopulate layout combo
+
     // Add new Map / Layout to the mapList models
     this->mapGroupModel->insertMapItem(newMapName, editor->project->groupNames[newMapGroup]);
     this->mapAreaModel->insertMapItem(newMapName, newMap->location, newMapGroup);
@@ -1760,6 +1762,8 @@ void MainWindow::on_actionNew_Tileset_triggered() {
         }
         insertTilesetLabel(&editor->project->tilesetLabelsOrdered, createTilesetDialog->fullSymbolName);
 
+        loadProjectCombos(); // need to reload tileset combos
+
         QMessageBox msgBox(this);
         msgBox.setText("Successfully created tileset.");
         QString message = QString("Tileset \"%1\" was created successfully.").arg(createTilesetDialog->friendlyName);