Is mostly because your Zeus is not synced. Zeus is using Neutrino to sync the blocks and that is quite different than Phoenix that is using electrum SPV.

Please read carefully the Zeus FAQ, it is described there your situation https://docs.zeusln.app/for-users/embedded-node/faq Here I explained in more details about Zeus and neutrino peers https://darth-coin.github.io/wallets/getting-started-zeus-wallet-en.html And here you have an advanced guide for Zeus https://darth-coin.github.io/wallets/zeus-node-advanced-usage-en.html