I've narrowed it down to the charging cable that comes with the mouse.
Installed Icue on an Intel NUC and plugged the mouse in. Icue came up with an error ! and the mouse worked for a spit second. Grabbed another USB cable to try, wouldn't quite fit right but it detected and the mouse worked.
Proceeded to follow the steps for forcing the firmware. Once that was done the error went away, but as soon as I tried the OG cable from the Dare Core SE it errored again. Redid the FW once more and just tried the wireless mode on both 2.4GHz and Bluetooth and everything is working great.
So new question, how do I go about getting a new cable for the Dark Core RGB SE?
I can't find anything on the Corsair store for replacement parts.