The problem is that the static drawing draws to the cellbounds and the active drawing draws to the clientRectangle (which takes into account the margins).
You can work around this problem until there is a release available that changes this behavior. You can handle the CellDrawn event, and just draw the bitmap there. This gives you complete control over where you put the bitmap.
Here is a little sample showing how you might to it.
Another option is to derive your own cell control that handles indents. There is a sample of this type of control in Syncfusion\Essential Suite\Grid\Samples\In Depth\VirtTreeGrid.