> I don't recall this happening to me before. Anyone has had this issue 
or any clue about how to solve it?

I have this in my ~/.gnupg/gpg-agent.conf file:

default-cache-ttl 600
max-cache-ttl 7200
enable-ssh-support
use-agent
pinentry-program /run/current-system/profile/bin/pinentry-gnome3

Hope this solves your problem.

Cheers
Reza

-- 
Reza Housseini

This message is signed with my GnuPG key:

     C0F3 0812 9AF2 80F4 0830 C2C1 C375 C6AF 0512 5C52