Rooted Galaxy S6, Custom binary blocked by FRP lock [details in desc]

Not too long ago, I rooted my device. Throughout the process I was met with an FRP lock, which I got around by removing all Google accounts on my device, and rooting like normal.

I then booted into the device, and re-added my google accounts just fine. Now it seems that I haven't rebooted my device through the weeks that it's been since I rooted it, because after I re-added my Google account, and just rebooted my device, the FRP lock is back, and preventing my phone from starting.

I understand that the most likely outcome of all this is a factory restore, or flashing stock firmware, but I have over 1k pictures on my device, and I'm at a loss here. If I could get those off, I'd be fine factory restoring my phone.