I´m constantly having segmentation fault errors when trying to use a wordlist of just 1mb (not even thinking about using crackstation one that´s over 4gbs). I cropped the list removing every non-alphanumerical password, converted from utf8 to ascii or added the --utf8 when running, etc.

Has anyone had success using large wordlists / tokenlists?

I´m running btcrecover under Ubuntu 14.04 with 6 x RX 570s. It works smoothly with small tokenlists over 20kp´s.