Hi there, Historian. Thanks for reaching out. Did you put any constraints on transfers in GW1? That sometimes makes the solve fail. We are working on a fix regarding that, but haven't pushed it yet.
It's a cool feature, isn't it?
Did you resolve the problem? Is it working properly now? If not, could I invite you to join our Discord? It's full of smart people that loves FPL and are willing to share both advice and answering tech questions.