FM2016 - Version 13.0.0.333 -- which update does that correspond to?

Having other issues and suggestion was made to check for updates.

Yep, update 5 is available.

Tried to install -- got error U44M1P6.

I'm assuming 13.0.0.333 (what I have currently) is the result of update 4, but am not sure.

Only suggestion I've seen is to reinstall FrameMaker and install update(s) again.

Is that the only solution, or have I missed something?

Thanks.