Error with WENO Scheme

Hey, I’m wondering if you can help me with another issue I’m having with MOL. I posted this issue yesterday here: Comparing Plot Outputs for Different Versions of Julia

I’ve come to realize that it’s an issue with one of the packages I use and not the version specifically as I’ve downloaded v-1.8.1 on a different workstation and using the current packages I get the same issue. So the code works properly with packages from before April but creates faults with the current packages.
Given that MOL is the newest and likely less used package in my code, I wonder if you could look into this and see if there is something I should be doing differently / If it’s an issue with a different package.

Thank you!