Vlad Transfusion Bug

Not sure if anyone has experienced this, but I was playing Vlad today (last game actually) and my Q would occasionally not function when going for last hits on minions. This was during the 3rd Q of Transfusion (Crimson rush). If a minion dies during the casting of transfusion, the cast and sound will initiate but the kill and heal will not register leaving your Q on cooldown but Crimson Rush is still active till it restarts. Just started this patch.

Video is a bit small, but you can see the tower target my second minion. My animation wind up begins, but the kill doesn't register nor heal me. The Skill still goes on cooldown though. Thankfully it was a norms, but I'd be very worried if this was ranked my heals weren't activating at crucial points.