Apple Mouse Not Recognized Upon Bootup

[stradify]

When I restart my 2015 iMac, running 10.11.5, I'm asked to provide the password for the encrypted boot drive. Unfortunately my Apple bluetooth mouse isn't recognized so I have to plug in a wired mouse in order to interact with the login screen. This was also the case under 10.11.4. This only became an issue after I recently decided to encrypt my boot drive using Filevault. Anyone else having this bug?

 

[NoBoMac]

It has always been like that for me.

What I do is use the arrow keys. Up-arrow to select the row of icons, left/right to "scroll".

 

[stradify]

Resolved: Found that if I double click the mouse it activates. Here's how I feel:

When I restart my 2015 iMac, running 10.11.5, I'm asked to provide the password for the encrypted boot drive. Unfortunately my Apple bluetooth mouse isn't recognized so I have to plug in a wired mouse in order to interact with the login screen. This was also the case under 10.11.4. This only became an issue after I recently decided to encrypt my boot drive using Filevault. Anyone else having this bug?