"Queue for transfer" not available for forms in Cloud

Hi gang,

We’re having some trouble with an Umbraco Cloud hosted site. Everything works as expected apart from Forms not being possible to transfer from dev to live - the option is just not there in the right-click menu. I’ve ensured “TransferFormsAsContent” is set to true in the appsettings (this is also confirmed in the Configuration Details tab under Settings/Deploy.) This is in Umbraco 13.5.3/Umbraco Forms 13.4.2.
Does this sound familiar to anybody else?