I have been following along with the blender creator course, and really enjoying it.
however, i have run into this issue. the image looks great in layout and shading views but when rendered it has these strange blobs, can anyone help me with this?
Not an uncommon issue if I am right.
You probably have an extra ground object.
You might have hidden it to the viewport with the eye icon but that does not hide it in the render! To hide it in the render you need to click the little camera icon near the eye one.