Error running solver: "Array must not contain infs or NaNs"

After setting up the conda env "relperm" using environment.yml from the repo (date: 20-April-2025) I am getting an error when running any one of the Jupyter notebooks.

The error arises in the line that initialises the model:
model1.solve;

Resulting in the error:
LinAlgError: "Array must not contain infs or NaNs"

This seems to be related to a recent change in the packages that are being installed, because when I reverted to an older set of packages, I am not experiencing the issue.

[stbe-de]

the error was reproduced on Daan's system with the installation of the reperm environment from the environment.yml file from the Core2Relperm github repository, which does not contain specific versions of packages. The error did not occur when using the environment from Steffen's local relperm environment which has somewhat older versions installed.
However, the error could not be reproduced on 3 other systems that were tested.
Therefore, we decided to include Steffen's environment file with the versions as backup (environment-fromhistory.yml) in case the issue occurs. We also updated the environment file adding the openpyxl and ipykernel packages

I have tested the solution above using the environment-fromhistory.yml file, and it works.
Using an alternative environment with packages updated to their most recent versions, still leads to the same "LinAlgError".