We have been made aware of an issue with new Perforce configurations and have had to disable this functionality whilst we investigate.
Existing Perforce configurations will continue to function as expected.
This means that users will not be able to create a new project using Perforce, reconfigure a project to use Perforce, or update the Perforce URL of an existing Perforce configured project.
I will update this thread once a resolution has been found and this functionality has been re-enabled.
Apologies for any inconvenience this has caused.