I noticed that it crashes when I have the Ring of Arcana active (by pressing G). The Arcana mode doesn't seem to matter (Fire/Water/Wind/Earth). My loadout is Nano armor, Morning Star, Ring of Arcana in SRG mode deactivated, Black Hole Band activated and some misc. items in hot bar. I'm not flying. Morning Star is not in my hand because right-clicking with it can destroy a huge cube of blocks. The teleport pipe gui works fine until I have my Arcana ring active in any mode. Must be a clash somewhere between the two mods.