Casting progress bar
I think that’s normal
Fear the might of Shatterstone!
That’s normal. The first small part is when the spell “charges” and does not yet do damage. The second, larger bar is for when it actually “channels” and does damage. The change is to visualize the difference between charging and channeling so to speak :-) Not all spells have two phases though, so you may not always see a bar like that (often it is completely small if there is no charging stage).
HTH
Phew, glad it’s not a bug,, thanks guys.