Newer obse functions gives errors in the editor, but works in game.

I’m modifying/ testing a mod that uses some of the newer obse functions, problem is that this gives errors then I try to save the functions in the CS.
Have obse 19b and starts the editor with obse_loader –editor, most obse functions works nice, just a couple with problems.
Yes it could be that the mod was obse 20, but then I should get errors in the game.