I'm using the Concur app on an recent iPhone - I can enter my expenses fine however, whenever I try to attach the receipt either via the camera or photo album, or phot store I get the following error message

"We're unable to attach your receipt. Please try again"

I've tried about 10 times with different expense entries and have tried multiple receipt images but for some reason it's no longer working.

It used to be fine previously. 

I can add receipts if I go through the web page but this is a much longer process to do for me.

Is there a fix please.