Start Position Sync Problem

I'm having a small amount of trouble with the editor. I'm a mobile user but maybe PC has this happen too. Anyway when I'm making a level, I'll find that it'll desync when I use a start position. It'll sync fine when I don't use a start position, but when I do, the game stalls for a quick second and desync the music. Is there anyway around this little bug? Any response would help a ton!