Please correct me if I am missing something, but as far as I can tell the image stabilisation (IBIS and OIS) has been affected by the recent FW update to V4.00 on X-T5 (and so it seems, to V4.40 on X-T2). I expect the same problem on X-H cameras after the recent update, maybe someone would like to test.
Previously, you could choose to have IS on full time (“Continuous”) or only when you press the shutter button to focus (“Shooting Only”).
Now this works only in AF-C. In AF-S when you switch to Shooting Only, IS does not work. Continuous works. In AF-M I have to try yet.
I tried with the XF90, XF18 F1.4, XC50-230, XF18-55. Seems to me like a bug in the new FW that could be corrected in future updates.
Has anyone else encountered this or has anyone perhaps found some relationship to other settings that could influence this behaviour ?