Mate, the latest patch (the one that fixed the Node Power bug) dropped the DPS on my build from ~1.6m to ~900k. I lost about 40% of my DPS, and I have no idea why. The only thing that might be relevant was something about "floating charges" affecting Discharge damage (I'm using Power Charges). Flipping through other builds I have saved, anything that used spells for primary damage (Blade Vortex, RF, Dark Pact) has lost a TON of damage. The only saved Attack build I have with data from pre-patch (Ele Hit) is displaying what it should.
I think you broke something. That, or something has been broken for ages, and it's now fixed, and I need to go radically retool my build.