Octoprint Anywhere Plug-in missing

Using Octoprint Version 1.3.10

I remove Octoprint Anywhere plugin and then reinstalled it successfully (the green success dialog box popped up). However, after the reinstallation it doesn’t show up in the installed plugins list and it is not in the Install New Plug-ins list. What happened to the plugin?
Has this happened to anyone else?

FYI —OctoPrint 1.3.10 running on OctoPi 0.16.0