Comment 1 for bug 1537627

Looks very similar to bug #1508390.

From the logs:

JSON response : {"explanation": "The resource could not be found.", "code": 404, "error": {"message": "Not found", "traceback": "Traceback (most recent call last):\n\n File \"/opt/stack/new/heat/heat/common/context.py\", line 329, in wrapped\n return func(self, ctx, *args, **kwargs)\n\n File \"/opt/stack/new/heat/heat/engine/service.py\", line 536, in list_stacks\n return [api.format_stack(stack) for stack in stacks]\n\n File \"/opt/stack/new/heat/heat/engine/stack.py\", line 438, in load_all\n not_tags_any) or []\n\n File \"/opt/stack/new/heat/heat/objects/stack.py\", line 120, in get_all\n for db_stack in db_stacks]\n\n File \"/opt/stack/new/heat/heat/objects/stack.py\", line 71, in _from_db_object\n context, db_stack['raw_template_id']))\n\n File \"/opt/stack/new/heat/heat/objects/raw_template.py\", line 67, in get_by_id\n raw_template_db = db_api.raw_template_get(context, template_id)\n\n File \"/opt/stack/new/heat/heat/db/api.py\", line 46, in raw_template_get\n return IMPL.raw_template_get(context, template_id)\n\n File \"/opt/stack/new/heat/heat/db/sqlalchemy/api.py\", line 102, in raw_template_get\n template_id)\n\nNotFound: raw template with id 1906 not found\n", "type": "NotFound"}, "title": "Not Found"} to_json /opt/stack/new/heat/heat/common/serializers.py:40