Shelly 2.5 cannot calibrate

i bought a few shelly 2.5 devices for the shutters. I installed 3 of them. I can move manually them, but cannot calibrate. All the time shows the consaption 0 W. Anybody has the same issue? All has the latest firmware.

Regards

I think cannot calibrate because the power meter doesnt count...

Did restart previos firmwares but still same..

hi, 3 shelly 2.5 3 separated rollershutter.

all 3 the same... shutters moving but no power consaption... wierd...

I installed 6 others to my friend.. all of them working fine....