Why isn't my camera working when I'm in my mobile banking app

[Android Central Question]

Camera comes on hashtags all across the screen but it won't press to take a picture and the focus lines for taking pictures of a check doesn't come on either

 

[belodion]

I should imagine there's a security reason for it.

 

[B. Diddy]

Welcome to Android Central! Which phone, and which banking app? What do you mean by "hashtags all across the screen"?