I have created a form which includes a field to capture signatures using the web form with the field type is photo and the appearance set to draw or signature. Many of my records have the following error: could not retrieve signature, but an icon is shown on the data view and the galley shows a black screen.
Basically, I am accessing the webform using the internet browser on the cellular phone to collect/record my data in the field. For many of the entries that I have recorded so far the signatures are not being uploaded. I see the message previously posted.