Ok thanks, going to rollback some of the migration code as it's better than being stuck at a splash screen. ETA ~30 mins.

Edit: Do you remember what version you were on before upgrading to 1.0.69? I suspect it's because I added code to handle the 1.0.68 -> 1.0.69 migration but not anything larger like from 1.0.65 which could explain why some people are unaffected.