One SVG image will double in ePub as SVG and PNG, why?

Hello, this is my second problem wit LibreOffive 7.3.2.2 under macOS 10.15.7 - 11.6 and Windows 10:

When I place (embed) one SVG image. I will see it twice in the ePub-Export. Why?

Best regards,
– draupnir.