diff -r b6cbba6e29a1 -r e628fc2e0c72 src/documentmanager.cpp
--- a/src/documentmanager.cpp	Thu Mar 03 11:42:52 2022 +0200
+++ b/src/documentmanager.cpp	Thu Mar 03 21:13:16 2022 +0200
@@ -256,7 +256,7 @@
 		if (file.open(QSaveFile::WriteOnly))
 		{
 			// if path is not nullptr, getModelById will always return a value as well
-			this->getModelById(modelId)->save(&file);
+			::save(*this->getModelById(modelId), &file);
 			const bool commitSucceeded = file.commit();
 			if (not commitSucceeded)
 			{
@@ -413,7 +413,7 @@
 	modelInfo.dependencies.clear();
 	for (int i = 0; i < modelInfo.model->size(); i += 1)
 	{
-		const QString referenceName = modelInfo.model->getObjectProperty(i, ldraw::Property::ReferenceName).toString();
+		const QString referenceName = (*modelInfo.model)[i]->getProperty(ldraw::Property::ReferenceName).toString();
 		if (not referenceName.isEmpty()
 			and modelInfo.dependencies.count(referenceName) == 0
 			and not failedToOpen.contains(referenceName))