this time the application is working but there is one limitaion: I can only choose an attachment from my mobile phone picture library. if i choose "take a picture" and select "use this picture" the app resets completly and the first screen appears again.
Yes...I have not found any way to make it work outside a form. I use the Attachments a lot. I do have a few that puts it somewhere else and then a flow puts it as the attachment on that item but in Powerapps itself it has to be in a Form.
I do however find stuff all the time that people say are not possible that really is so don't always believe those...just might be hard...lol.