I have created a test version of a skill called 'Natta Food' and given test test access to the tester. The tester can enable the skill via the Alexa app or via the testing invite email received from Amazon. But when they try to enable the skill via the command 'Alexa enable natta food' the skill cannot be enabled. The voice-based enablement was working originally but has now stopped working.
Any ideas why?
Thank you in advance!