Found out the hard way THERE IS a maximum picture limit (and seems to be pretty low). Took pictures of each zone on my iPhone. Then downloaded pictures to my laptop, tried to upload to the Rachio app @ cloud. Four went thru ok. Two were “OK”, and then got either a non-descriptive error OR a blank image instead of the picture. Found out that by reducing the picture size to 2Mb or less, it worked peachy.
This limitation has either to be lifted or documented what the max size is.