I have also problems to create a regular tease. So I guess that the problem is the database and not EOS.

I have the same problem. The query to GraphQL does not return an id.

POST-Request to https://milovana.com/graphql/ :
{"operationName":"CreateTease","variables":{"title":"Test"},"query":"mutation CreateTease($title: String!) {\n createTease(title: $title, type: EOS) {\n __typename\n id\n title\n ...