Forge Saved Map Issue

I’ve been looking for around for this answer, but does anyone know how or why a map that is saved on forge will revert to your older version of your created map in custom game? The title of my game would change in after starting the game up in customs, but when I’m in forge mode it has all of my items and new map settings. It has been bugging me for weeks any advice would help because I really don’t want to start over from scratch.