I seem to have the same problem as well.
I’m really anxious for a solution, if anyone finds one.
I just started having this same issue about an hour ago. It scared the you-now-what out of me because I thought my blog had been hacked, but then when I discovered that it started on two blogs at the same time, so I figured that drastically reduced the likelihood of a hacker. Turning off the plugin fixed the problem. I hope this gets fixed soon.