As the title states, I'm a silly face and had tried the previous beta versions and it changed the database for userdata and broke logins completely. The new 0.19.0 beta/rc releases of Lemmy and Lemmy-ui have allowed me to login from the web again, but Sync is still broken. I'm not sure if this can be fixed like it was done for the 0.18.4-beta.8 fix or not.

I'm also going to try and resist the urge to run beta when 0.19.0 goes release so I won't have this issue. ¯\_(ツ)_/¯