Hi, I got the same problem during update. When system started downloading update to SailfishOS 4.3 I received a message that I have to remove WebPirate and ofono-alien-binder-plugin. I removed WebPirate but not ofono-alien-binder-plugin.
Now, after update finished downloading I have a really long list of packages, that looks like all packages installed in the system.
I downloaded 4.3 update directly after updating from 4.1 to 4.2. The only change in ssu config I made was setting the password.