Authors image would not be displayed

Hello all,

i have got a question. I think after the last update of graphene the authors image is not been displayed any more.

At the end of each page normally the image and the information about the author are shown. But at the moment the image is missing on the frontend. For example: https://www.laufschuhkauf.de/2021/01/dr-matthias-marquardt-ueber-maximalschuhe-karbonplattenracer-und-verletzungsfreies-laufen/ The other information is normally shown.

On the backend in the profile i see the image. How could I solve this problem?

Thanks for helping me.

Greetings

Wiesel