Hi Chris,
I didn't see any *FCLM* URL in the console. It probably be the fiori designer or system alias issue.
The previous reply is the only suggestion I can give to you.
I'm in the application team not the basis team for system landscape/system setup. I suggest you report incident to SAP. It should be forward to component CA-UI2-INT-BE, which is component of note 2269272 and responsible for the fiori-ABAP connection issue.
Best Regards,
Yujia