I don't know if it's just me, but the world spawn is supposed to stay loaded. I'm supposed to be able to put command blocks and it should still do the commands, but when I have better portals, they seem to stop doing their things.

Always or only after building/loading a portal?
Also, versions of BP and Forge?

Closing due to inactivity. Feel free to reopen once above questions have been answered (and if it still happens with latest BP).