Can I change the default language for a service project in Jira Service Desk version 4.13.3?

[nora_westphal]

Currently we use Jira Service Desk in version 4.13.3. We updated on this version shortly.

I created a new service desk project by shared configuration of another project.

The new projct has set English as the project default.

I added German as a language, the status is up to date and it is available to customers.

Though, I can not change the default language to German.

It should work this way as it is described here: https://confluence.atlassian.com/servicedeskserver0413/providing-help-in-multiple-languages-1027136636.html

But somehow it doesn't.

Does anybody know if this is a bug, if there is a workaround or if any other configurations have to be settled first?

[Turner]

Indeed, Jira service desk projects use different language settings than Jira Software projects, since they have interactions with external users.  MyGreatLakes Select Change default language. Choose your required language.

[nora_westphal]

Hello Turner, thank you for your fast reply.

As you can see from my screenshot this button is disabled. It says that i do not have another language available though this is the case. Every required setting as mentioned in the documentation is made. German is Up to date and available to customers. So I do not see the point, why the button is disabled and the message is given.