Sorc Counterspell bug when mob is in final split second cast

[theofficejackpot]

< 772h/810H 232p/232P 150v/150V (0) |cw +|ao +|sb +|cb x|bw x|lb +|drf +|dm +|qs +|ts 1|ar +|cs 29|et 42|pls
+|ec +|cn +| T: TC: few scratches E: apprentice EC: nasty wounds EP: std P: std >

**[MELEE: Counterspell] CN INVOKER
A surge of energy erupts from your glowing hands and disrupts an apprentice invoker's spell!**

< 772h/810H 232p/232P 150v/150V (0) |cw +|ao +|sb +|cb x|bw x|lb +|drf +|dm +|qs +|ts 1|ar +|cs 28|et 42|pls
+|ec +|cn 7| T: TC: few scratches E: apprentice EC: nasty wounds EP: std P: std > 

**An apprentice invoker completes his spell...
An apprentice invoker utters the words, 'sandblast'.**

[shevarash]

I can't recreate this. Do you have any more examples of it happening?