DMO not Procing Slow Time

Hi. I have been using several dmo builds and have had it not cast slow time repeatedly and it is making the builds completely useless. This appears to happen mostly on larger mobs and those that are immune to CC or damage. It has happened on regular groups of mobs as well.

Builds: MM (Glacial Spike) Fragment of Destiny (Sanct) + Mirrorball and Energy Twister+Arcane Torrent

Energy twister will correct itself if I hit the mob with arcane torrent.

Imagine that. Things immune to it don’t have it cast on them.

Hmm, Methinks me knows what issue be.

The set specifically says on hit, not whether or not damage or CC is applied.

Prove it is not cast rather than cast with no effect.

I just tested it 25-30 times in a row on 3 different Juggernauts and got a slow time bubble 100% of the time.

If it is not proccing, then it is not because the mobs are CC immune.