Bitcoin Core is syncing the blockchain, but no peers show on the debug window.

Network traffic shows some bytes sent but none downloaded. Tailed debug logs show a new best chain tip but no peers show on the debug window. Sometimes I see an IPV6 or onion peer that disappears almost immediately.this is my config file:I'm using 0.18.1 on linux.# Daemon Optionsdatadir=/datadirtxindex=1server=1listen=1​# Network Options#proxy=127.0.0.1:9050#onlynet=onionblocksonly=0​# RPC Optionsrpcbind=127.0.0.1rpcallowip=127.0.0.1rpcuser=rpcpassword=​# ZMQ Optionszmqpubrawblock=tcp://xxxxzmqpubrawtx=tcp://xxxx via /r/Bitcoin http://bit.ly/2WjDVzk