Is there a problem?
the editor works well ctrl + g and appears on the point
and when you run in the game it appears in the ocean
And did you export to the engine, via the file menu? After any change to check everything in the game, you need to do the following: File\Export To Engine. After these actions, everything should work.
Developer from Russia. Lessons on Schematic and more: https://www.youtube.com/c/PODOBI4