My wallets are fully synced and see 11 masternodes at the time of writing.  I'm assuming that I am not on a fork, so the files below should help you:

I've uploaded a bootstrap.dat in a zipfile at https://www.kethiel.org.uk/coins/bootstrap/yup/bootstrap.zip - but this in your data directory before opening the wallet (I suggest taking a backup of everything first, but should be fine)

I've provided a peers.dat too (https://www.kethiel.org.uk/coins/bootstrap/yup/peers.zip), in case that helps.