Thats the sort of mistake I was expecting it to be, but I just double checked and its not that. Its really weird. If I have the brush tool selected for example, I can right click a layer and select "Fill Entire Layer" and it works, but if I have the fill tool selected it won't do it. And obviously that also applies to selecting the fill tool and using it normally, won't work. I *can* fill with Freeze, and I can fill with Erase, though notably neither of those fills with 100% opacity despite settings to the contrary, even if using the layer option so theres no influence from brush alphas or anything like that.
I've been getting a decent number of weird bugs, things like all the tools no longer applying (went away on its own for no obvious reason), or the preview window for things like the transform tool not rendering properly. Stuff that I never see any results for when I google, I wonder if I've set something up wrong or if theres something about my setup that makes it particularly buggy.
The issues I'm running into feel too unstable for the prestige that 3DCoat has in the industry you know?