7.2.X, 7.3.X, Master
Steps to reproduce:
- Generate a new layout template and deploy the war to your server. You can follow this doc.
- Add a Nested Applications portlet to a page. Configure it with the new template: three dots -> Configuration and select your template.
- Remove the newly created layout template from your installation: you can delete it from the osgi/folder.
- Configure the portlet with other available layout template (2 columns for example).
Expected result: 2 columns layout template is applied.
Current result: an error occurs and Nested Applications is temporarily unavailable.