Hi @keith,
really lovely answer right there. Thank you very much for taking the time here.
I really appreciate it, however, just for debugging I commented out everything around what was there and just tried to get the list length to get to the bottom of the logged error.
I did check before whether the list was empty but that was unfortunately not the case either. Could have provided that info before, sorry for that.
Thank you again very much for that long and interesting read.
For those interested something similar has happened before and was fixed: