If the saving of a recipe fails, you’ll find a new “Copy JSON to Clipboard” link next to the “Save” and “Save & Close” buttons of the recipe modal:
Clicking on this will copy the recipe in JSON format to your clipboard. By saving this text somewhere you’ll have a copy of the recipe that can be imported using the “Import from JSON” option, once the saving issue is resolved:
This feature should make sure that you never lose your recipe, even when there is a (temporary) glitch.