So I had uploaded my lineart to Krita and the outlining and coloring was going quite smoothly.
I keep everything on separate layers.
I ran into the issue last night of when I went and clicked on the line layer for one the characters, it was drawing grey when I had selected black.
And when I clicked on the color layer and tried to color her hair, it was grey on the background and black on her hair.
This is only happening on those two layers.
So should I just create a new layer and not worry about it, or is there something I maybe selected and just didn't know?
Also, I had selected the contiguous selection tool before the issue happened, so I don't know if that is what did it.

pc specs
Windows 10
Krita 3.0.1.1
HP Notebook
Wacom Intous

Could you share the .kra file with us so we can see what's up? It could be a bug, though that's unlikely...

Sorry I haven't been on here in FOREVER.
I actually discovered that it is my drawing tablet that is acting wonky.
But thank you for taking the time to help.

Ah, good, thanks for getting back to us!