Something i noticed with the latest update is in the frost mage rotation its saying "Counterspell" should be used, regardless of the mob, i don't really know what causes it to replicate it, but it should be easy to see when using the addon as a frost mage

I had that issue too on the various specs.
I changed all of them to this:

-- counterspell,if=target.debuff.casting.react
if S.Counterspell:IsCastableP() and Settings.General.InterruptEnabled and Target:IsInterruptible() and (true) then
if HR.CastAnnotated(S.Counterspell, false, "Interrupt") then return ""; end
end

This was fixed in dac240f . Please ensure you have the most recent version, especially when reporting issues with WIP builds.