I reset the simulation, then went back to Euclid before putting down a base computer.
After resetting, I needed mats to repair, so I summoned my freighter, then summoned my repaired ship up to it (b/c I didnt mark it :O). Then, probably portaled back to Euclid from my freighter. I dont see a non-Euclid system in my available portal stations. If I want to go to the new galaxy I chose, do I need to travel through the waypoints to get to the galactic portal again?
If you use a Portal with the 1st icon in each slot you will be approx 5000ly from the centre and will be able to make the jump again after a couple more warps to the core.
Is you jumped to euclid without dropping down a base in the new Galaxy you can't go back unless you go to the galactic center again.