X-Perl, cast bar and macros

Hi,

I've got the following macro on my shaman:

Code:

---

#showtooltip
/script UIErrorFrame:Hide()
/cast Elemental Mastery
/script UIErrorFrame:Clear()
/script UIErrorFrame:Show()
/stopcasting [mod:shift]
/cast [mod:shift, target=Zorck] Lesser Healing Wave; [target=focustarget, harm][harm] Lightning Bolt

---

In plain english, it pops Elemental Mastery if it is up and then it casts Lightning Bolt on my focustarget if an enemy, otherwise on my target if an enemy. If SHIFT is down then it casts Lesser Healing Wave on Zorck.

The problem is that the Elemental Mastery cast screws with the X-Perl cast bar. If I mash the button the X-Perl cast bar shows up in red as if the spell was canceled and is not casting. The rest of the group shows up fine, it is only a problem on the main. Initially I thought my macro was screwed up but I turned the default Blizzard cast bar on and that shows up fine.

Anyone else have this problem or know how to fix it?

It is a bug with X-perl, it happens to me constantly, which is annoying while healing in a raid or something.

Try using Quartz or any other Addon if you find it being too annoying.