I think the issues is being cause by the Combat log bugging out use this and put it in a macro and see if the damage meter works after.
/script CombatLogClearEntries
/script CombatLogClearEntries()
/run local f = CreateFrame("frame",nil, UIParent); f:SetScript("OnUpdate", CombatLogClearEntries
Credit to the reply in this thread
http://forum.warmane.com/showthread.php?t=355441
That code hurts...
The first line does absolutely nothing at all.
The second line reset the CL as intendend but it's not needed because since the reset is done on every frame with line 3, which is missing the full funtion name "...s" and a closing bracket ")"
Either use a prober CombatLogFix or just use
Code:
/run local f = CreateFrame("frame",nil, UIParent); f:SetScript("OnUpdate", CombatLogClearEntries)