I've used the X-H1 for a while for my professional work, but there were too many bugs that Fujifilm never really solved in firmware. In terms of build quality it is a great camera though. The X-Pro2 has a micro-USB2.0 connector and the X-H1 has a micro-USB3.0 connector. These 3.0 ports are more discerning when it comes to the right cable.
In case you work with an adapter try a native cable that doesn't need an adapter (also on the mac-side) and isn't too long (no more that 3m). The X-H1 is esp. sensitive to the capacity of the cable and whether it is shielded. In the end I got it working with Capture One, but I had to buy a new 3m Tethertools cable as the 4.6m was apparently too long. Now 3m is too short for me, so this on top of some other issues was for me the reason to switch to another camera. Tethertools has also a solution to boost the capacity (Tetherboost) of a USB3.0 connection, but I never tried that. I'm now on USB-C on both ends, so that solves the issue.