For some leagues, the tab just doesn't show up.
What's more confusing - I was poking around in the editor on an existing save in the Welsh Premier Division, so that tab and thought I'd start a new game with tweaked prize money from the start.
Now in both the old and new game the prize money tab for that division doesn't show up.
Never mind, this morning it doesn't work again.
I'm trying to understand if there's a pattern. Which competitions have you had this problem with, besides Welsh Premier?
It seems to be a wider issue regarding the license.
If I use the mass editor it tells me my license isn't valid and then the program goes back into an unregistered state.
If I import the license again, restart my PC I can fully edit everything including prize money - once. When I click save changes the prize money table disappears and the next time I try to use the mass editor it again says my license isn't valid.
It has taken a while, but thanoulas rolled out a fix for competition prize money just yesterday. Could you please check if the prize money issue has been sorted for you?
It's important to remember that if a league isn't 100% loaded in your save, it's unlikely for FMSE18 to read that league table and/or prize money. In other words, make sure the leagues you wish to edit are actually playable.