Spell shield Blocking more than 1 spell

I am a vlad main, and I have the habit of going up to enemy champions, E'ing, waiting for the particle to travel some distance, and then Q so that both spells hit at roughly the same time. However, if Sivir or Nocturne (I haven't tested with any other spellshields, such as banshees, so I don't know if that's also bugged) uses their spellshield when I do my little combo, it will block both spells. This is huge. It happens roughly 100 percent of the time to me if the enemy can do the timing right on their end, and prevents me from receiving a massive heal (over 400 lategame ignoring the spellvamp) and instead of negating half my 'burst', negates ALL of it, considering Vlad has only 2 spammable abilities. In addition, I am losing 140 from a max stacked E. Now, of course, it is a spell shield, and should counter me somewhat, but to counter me entirely because of a bug is infuriating.

And before I hear people saying 'well it's hard to manage to do that', I do it roughly 90 percent of the time in actual matches. I'm Silver I currently, and I've been playing Vlad for so long I can't avoid doing the combo thing I do as it's muscle memory. It's about a 1/2 or 1/4 second window before the spellshield vanishes after being hit, so I think a good solution would be making it check more frequently whether it's been popped, at least until a permanent solution is figured out. 1/8 of a second might work, but it might be better to make it 1/16 if possible. Another possible fix, if it could actually be coded, could be that if this scenario happens, it blocks the spell that was cast first (as that's probably the spell the person's trying to block anyways).

I've read other posts where riot members have dismissed it as not a big enough deal to warrant trying to fix it, but this bug is pretty game changing.