Weird Bitmap effect

Can please somebody verify what I see in CorelDraw 2019

a) Import a bitmap

b) Use the node tool to drag the edges of the bitmap so it look e.g. like this

c) Add a bitmap effect. Use Gausian Blur.

d) The bitmap is blurred, but the editing of the nodes in step b has gone. The bitmap borders are a rectangle again.

e) Use Undo

f) the bluring is undone. The bitmaps is still a rectangle. The editing of the nodes is like they never happened :-(

Some bitmap filters (like Gausian Blur) have this behaviour on my machine - but not all.

Can someone please verify that this isn't just on my machine.

Best regards