Flashing green and magenta lights

I have two spark cores, both of which were working fine this morning, then after use for two hours, one began flashing green and would connect but would not not flash code. The factory default doesn’t work either, it will just flash green constantly. The other spark core has the same problem; however, instead of flashing green it is solid magenta. Any feedback would be appreciated.

What’s happens when you perform a factory reset on both cores?

Nothing happens, they continue flashing

Your cores should be blinking blue after a factory reset:

Here’s a video that shows the process just in case: