[1.8.9]Overworld not loading when teleporting with Custom Teleporter

I am trying to revieve and fix an old bug in mod of mine back in Minecraft 1.8.9.

I made mod where one of the things it does is teleport to another dim, without the need or creation of a portal.

It works when going to then Nether from the overworld, and works going from the Nether to the END.

But the problem is that if I go to the end it will go to the End's spawn point, instead of where I want it to go instead in the end. But most of all, If I go to the Overworld from the End, it will fail to load in the overworld without re-entering the game.

Here is a link to my teleporter code:

https://github.com/needoriginalname/infinityguantlet/blob/master/src/main/java/com/needoriginalname/infinitygauntlet/dimension/SpaceGemTeleporter.java

Link to where it is started:

https://github.com/needoriginalname/infinityguantlet/blob/master/src/main/java/com/needoriginalname/infinitygauntlet/proxy/tickhandlers/CommonTickhandler.java

Link to what the overworld looks like when I teleport in: