G6 says 49. Meter says 181. What is happening lol.

I changed my G6 a few hours ago. My BG dropped, or supposedly did. I didn't feel low, but that's not abnormal for me. I ate way too many gummi worms, and the G6 keeps pingponging between "LO" and 49 while the meter is believably creeping up and up (I've checked twice (after washing my hands)). I've never seen the G6 be this far off, but because I often don't feel low BG, I get nervous. Has anyone had this happen with their G6?