Why can't I remove the Play Store from my recent apps list?

[AC Question]

can't remove Play store from recent apps list

Android 4.4.2 on my Alcatel Pop Icon phone. There is an icon showing up on Google Play Store app on "Recent Apps List". I can't remove the app from the list if it has this icon. The icon looks like a camera icon.
This is a new problem so I have run antivirus to no avail.