This is in line with the governments wishes as well

The ERG is to voting against all the amendments (according to FT). That is in line with the whip from the government. If any of the amendments are passed, they will vote against the main amendment. If they all fail, the ERG members will vote as they see fit on the main amendment.

Labour will support the J amendment to prohibit PM May from a 3rd meaningful vote. No surprise there.