zsh-autosugestions working once only after doing source ~/.zshrc

[blogdemoi]

Hello,
I installed zsh-autosugestions on my Manjaro Xfce with https://github.com/zsh-users/zsh-autosuggestions/blob/master/INSTALL.md#oh-my-zsh

However it works only when I do source ~/.zshrc . I open a terminal and it doesn't work, I have to do source ~/.zshrc first and then zhh-autosuggestions will work... If I open a new terminal I have to do source ~/.zshrc again.
What can be wrong?
Thank you.

[blogdemoi]

I think it is the same problem as #416 but the solutions in this thread don't work for me.

[blogdemoi]

Just to let you know if someone is interested. It seems to be related to terminal. I was using xfce4 terminal. I just switched to URxvt terminal and zsh-autosuggestions is now working fine.