pamac About Box shows 10.1.2-0.1.
pacman shows “there is nothing to do”.
Rebooted, just in case 
. Tried Refresh Mirrors. Nope. No progress bar 
As I mentioned above, I tried Refresh Mirror List on pamac 10.0.6-2 and I see the progress bar.
If you were to click Refresh Mirrors in the spirit of testing, does pamac terminate. pamac terminated in 10.1.2-0.1 and 10.0.6-2.
I normally use the commandline, pacman-mirrors. I use pamac for AUR mostly.
I definitely wanted to try it for myself. Other than what I mentioned above, it looks and acts perfectly fine. I’m trying to learn as much as I can about the whole CSD thing since I’ve committed myself to XFCE after years with KDE.