@pillar
Point taken, I've created this bug report, including the way how I fixed it, as I couldn't wait till the (packaging or other) error was fixed at source. I hope new version(s) of the package solve things a different way or it gets confirmed that my personal setup is the culprit, then I guess I'm on my own

At Andrew, Jaffa, MohammadAG, and others involved in the CSSU, thanks for all effort so far, Happy to test further changes again. Even if they're a bit bleeding edge