Missing error message when the integration name is already used

When I want to save an integration with a name which is already used by another integration, shows an error message but without any information.

When I look to the console, the back-end endpoint returns 400 with the text:

[{"error":"NoDuplicateIntegration","message":"Integration name 'integration1' is not unique","property":"update.obj.name"}]

so it looks like UI issue.