IpcProvider subscription frozen after few minutes

using latest ethers 5.0.30 test code:

const url = '/geth.ipc'
const ethers = require('ethers')
const provider = new ethers.providers.IpcProvider(url);
provider.on("pending", console.log)

new tx stop coming in a minute or so. Tested on few servers, same result. No issues with WebSocketProvider. Also looks strange that this code prints transaction object if using Ipc and just tx hash if using WebSocket. Seems like undocumented behaviour.

Also web3js works fine on same server using this:

const Web3 = require('web3')
const net = require('net');

const url = '/geth.ipc'

const web3 = new Web3(new Web3.providers.IpcProvider(url, net))
web3.eth.subscribe('pendingTransactions')
.on("data", console.log)

Returning only hashes also.

[coffee-git]

same v5.5.2

[k1ngJ]

Same issue here. Returns a full tx object instead of a hash.