Domain transfer with InternetX fails:
The owner change confirmation is missing.
Changes on InternetX side since 7 Dec 2016 (to carry out automated owner changes of gTLDs via the XML API, it is needed to add an additional API key
<confirm_owner_consent>1</confirm_owner_consent>). The corresponding BA bug is #PBA-77970 ("InternetX domain transfer failing: The owner change confirmation is missing")
The current workaround to the issue is as provider transfer domain to InternetX manually and use domain conflict resolver to complete order in BA.
Hotfix for BA 6.0.9 is currently being prepared. Earlier versions are considered EOL.