Ganglion noise abnormally high amplitude very often
I have been using Open BCI Ganglion for quite a long time now(7 months). I purchased a new board and started using it a month ago. I am using Gold cup electrodes. Since a week it has started giving more amplifier saturations and sometimes it samples very slow. Typically, now the data can look like:
The first 3 are raw from the time it was sampling slow. The last one is filtered, and I am referring to the double spike on the left that comes frequently now. I am using bled112 dongle. What can be the issue here?