LibreOffice Impress - Enable wrap text around image

Dear LibreOffice community!

I am currently trying to wrap some text on an Impress slide around an image (png format). However, the wrap text around image option seems to be disabled (i.e. when I select the image and go to Format → Object and Shapes → Text). Is this supposed or does there exist some way to enable it (in LibreOffice Writer text wrapping works perfectly)?

Thank you in advance for your response!