iPad 64GB Wi-Fi; latest version of Logos app.
This morning my preferred Bible has changed on its own at least 3 times. I use Carson's "For the Love of God" as a reading plan. I noticed this morning that the text of the daily passages looked different, and I saw that the open resource was NIV 1984. My preferred Bible has always been ESV, since I installed the app. I've done nothing on purpose to change that, and I'm 99.9% sure I've done nothing accidental that might have changed it.
I killed the app and re-opened it, navigated to a passage from Carson, and it was still NIV. I went into settings and changed preferred Bible to ESV. When I went back to Carson and selected the next passage, the ESV came up. Using a two-finger swipe, I returned to Carson. When I navigated to the next passage, it came up in NIV; and in "Settings" my preferred Bible had changed to NIV. I've repeated this 2 more times.
Help!!! 
Thanks,
Donnie