I have setup lastpass to ask for yubikey as master password to enabled lastpass. Has been working fine.
On upgrade to Version 188.8.131.52 (Official build) dev (64-bit) i get re-prompted to authenticate, i do that and just go around in circles where everytime i authenticate it opens a new tab asking me to authenticate, i am unable to login to lastpass.
Haven't yet tried to uninstall extension and re-install.
Toggling extension off and back on again didn't make any difference.