PDF export fails

Exporting a Jupyter-Notebook with an image fails with an internal server error, because of the LaTeX error:

Undefined control sequence.
l.399     \pandocbounded
{\includegraphics[keepaspectratio]{figure.png}}
? 
! Emergency stop.

However, with the keras3-gpu image it works as expected. In the keras3-cpu image it does not work. So, there must be something wrong with the pandoc template used for the target format PDF (via LaTeX).