Shading + erase does not do anything, so you can get into situations where you are stuck with incorrect shading, such as if you reload. Also, sometimes you don't notice until much further on in a solve that you made a misclick or mistake, and the only way to fix it (if the history is present) is to undo until you reach the point at which you input the incorrect shading.
I may have found a workaround by placing lines and Xs in such a way that it invalidates the shading, but it is very unergonomic
Shading + erase does not do anything, so you can get into situations where you are stuck with incorrect shading, such as if you reload. Also, sometimes you don't notice until much further on in a solve that you made a misclick or mistake, and the only way to fix it (if the history is present) is to undo until you reach the point at which you input the incorrect shading.
I may have found a workaround by placing lines and Xs in such a way that it invalidates the shading, but it is very unergonomic