@zipit Thanks for the insight! This makes sense, I vaguely recall typo-ing random.seed and forgetting the () and it threw an error so I fixed that, went writing more of the code and then didn't relate this error back to that brief moment. I don't recall assigning it as a property, but I do have a seed = 12345 elsewhere in the code, so maybe I did!

Thanks all for sanity-checking it, solved.

cheers,
brasc