Is FIDCC2 idoc ALE distribution supported in S4 Hana, private cloud installation?

Hi All, in our new S4 hana private cloud installation, I need to swith on ALE distribution for generated accounting documents to another SAP hana system (through BTP CI middleware, http connection, not ABAP connection. If I create the BD64 distribution, there is simply no accounting document created from the FI-CA reconciliation key posting, and no idoc either. If BD64 distribution is deleted, accounting documents are created fine again, but no idoc of course.