Dronepictures 3D Scan cant set right Scale

Ah all right! Thx for your really fast response!
I’m gonna try that right now.

My workflow is as follows.
I import the drone images and start the map wizard.
After that I check if RC has “scanned” the house correctly, using my measurements of the house and the tool Define Distances.

I have now clicked on update and unfortunately there have been no major improvements and the area is still marked with a yellow exclamation mark.
Also no improvement when I clicked on “Start alignment”.

“Deleted Image by myself”