If I try to write an new email the blue button in the left corner does not respond

Hi Willie Can you clarify which button you mean? The only button with a blue highlight in the upper left, represents the selected account. a. You can swipe left or back to close the account or folder list. b. Select a different account. c. Press the up/down arrow to toggle between the account and folder list. Did you mean the blue message compose button (bottom right)? Is the issue still present after restarting the phone or terminating TBA via the recent app list?