Google Keep Issue

[and_youf]

Keep reminders are not working on my Android. I set a reminder and then it doesn't make the audible alerts until I unlock the phone. I have Keep to not go to sleep in the background so don't know why it does this or if it is a known issue? I really like Keep and don't want to have to switch to something more complex and download another app (ie. Evernote or Todoist).