
It seems the node sometimes happens to report about some error in line 2436 though I'm not familliar with dat python thang to see the reason what's going on there
https://image.ibb.co/n7r4mx/image.jpg but that was v4.2.3.9 so I gotta upgrade stuff
UPD that issue has been fixed with the latest version of the node

So it's ok now? Hard to say what it was but I'm glad it's fixed- might have been some invalid mempool data, I've seen some recently incoming