206 samples :: Mass matrix contains zeros on the diagonal

Hi guys,
I just got a new pi4 8gb, installed 64bit rasbian and attempted pymc3 as the first task after making compile and netcdf and h5py libraries available.

I get the exact same error as above.

The conda environment doesn’t seem to be there for arm64 yet, and I’m not much into installing layers of systems. I have tried conda to no success, docker just seems like a couple hours setting up and changes to my environment that will live longer than I’d wish for a test, all to potentially reach the same result.

This is 100% reproducible for me, straight out of the box following https://docs.pymc.io/ gets me this error without fail (pun intended).

Thanks,
Peter