Similar problem for me!
On the main screen of an app camera does connect, and some functions, which are Bluetooth related, do work (as shutter button from app, location sharing, camera settings backup). However, other functions, which rely on WiFi, don't work (such as camera live view and photo backup to phone)....
Nevertheless, phone CAN connect to camera's WiFi hotspot manually (the phone shows successful WiFi connection)... but it doesn't help the app to work...
Fuji please release a fix!