Finally got things working (hard to see why I dod not try same before 
)
Sharing just in case someone else face same issue…
- re-added again both Telldus-devices (online only needed in my case)
- removed hidden-status for needed devices / sensors (could see that only un-hidden seen in Homey, at least in adding-phase)
- added remote sensors
- added all remote devices (as only unhidden devices shown)
