Hope you guys from DJI are reading this forum. I have to report that XT4 doesn't connect to SC neither with focus motor cable set no multi USB-C cable.
Hope to get a new f/w update to solve this soon.

Yes, the X-T4 is sadly not yet supported by the firmware of the Ronin, so please be patient for that.

I just found out myself.. I'm sure they will fix this, let's hope soon! :-)

Even after the firmware update (v1.5.0.40) that supposedly added support for the Fuji X-T4 to the Ronin-SC, it doesn't work.  I can get it to connect for about 2 pictures and then it stops working. If I turn everything off and wait for a few minutes, then turn it back on, I can again, maybe, sometimes, get a picture or 2 before the connection dies again. The same thing with the focus wheel. I can focus for about 2 seconds and then it freezes up and stops working.

Same issue was on (v1.5.0.40) and after update to v1.6.0.50 - Fuji X-T4 to the Ronin-SC  -  doesn't work..... it work 1-2 sec before the connection dies.

DJI - Fujifilm X-T4 owners need HELP!!!