Hi Colin, thank you for your replies and your time. After wiping home folder out as well as removing npm/node js and starting fresh - I can see the error coming up.
It is only with this sensor, and that very same sensor works on my other instance of node-red on raspi.
I am in the middle of setting up VM just for node-red which I will be able to regularly back up, hope this will be best.
NR and npm/node js is still new to me.
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