Dual Monitors stopped working on Sierra 12.10.6 with HD530

I previously followed this guide and was able to boot into Sierra with both monitors on by having my main display on all the time and as soon as the progress bar appeared turning my secondary display on.

After updating I can only boot with one monitor. Both work, but not at the same time.

Anybody else get this?

submitted by /u/0x6b726574617368
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