Comment # 3 on bug 1228366 from Daniel Garcia

(In reply to Grant Pearson from comment #2)
> It is possible the bad_alloc error came about from originally installing the
> Python module pyproj using pip as there was no python311-pyproj package for
> Leap 15.6

Okay, looks like that could be the problem, installing pyproj with pip can
cause some kind of incompatibility. So I could say that this is not a "bug" in
the python interpreter or python packages in Leap, it's a incompatibility
problem between system installation and external pip installed packages.

In any case, I've been testing, with a clean container for leap:15.6,
installing pyproj with pip3.11, and I can't get any crash, running some
examples of pyproj. I was trying to find a simple script to reproduce the error
without needed qgis and plugin environment, but I was unable to do that.

How do you install pyproj? Are you sure that there's no python version mix?
Maybe it's getting the python 3.6 version or something like that.