I followed your online tutorial: http://devcenter.appery.io/tutorials/...
What I created was a "Take Photo" button, an image component to preview the image, a text input field to add a name to the photo, and a "Save" button.
Everything appears to be working when I test on my device. I can take a photo with the take photo button, I can preview it in the image component and it shows up, I can enter text in the text input component, and when I hit the save button it saves everything to the database. ( I checked the db and it is saving properly)
In my database, the image is saved as a series of numbers, since the type is set to string, for example: "1425515368083."
I created a separate list on a separate page with a label and an image component inside. I created a list service for the page, and I am able to map the text from the name in the database to the label in my list. It is not allowing me to map the Photo from the database to the "Asset" for my image component. The only area it allows me to map the Photo from the DB to is the mobilelistitem.