Hi Kiril,
Glad that has allowed you to progress albeit it in a rather ad hoc fashion. I confirm that is the expected behaviour with the fcm_make2_um task building in the fcm_make_um directory and the location of the binary. The model task will locate the um-atmos.exe correctly.
I’ve still not had any inspiration on how to fix the 2-step make unfortunately.
Cheers,
Ros.