Deleting a Tab App from Page throws error

Question

Deleting a Tab app from a page throws error.. I can successfully add the tab app, but cannot remove it with same credentials.

Unsure if it is new. I am pretty sure my data is correct.

Steps to Reproduce

1. Get on to graph API explorer.
2. Try DELETE for /192869707423790/tabs/app_149874521847288.

3. Throws error -

   { "error": { "message": "(#100) Tab is not installed or not removable: app_149874521847288", "type": "OAuthException", "code": 100 } }

Answer 1

This seems to have been fixed and closed now.

https://developers.facebook.com/bugs/503381706394259