[CRASH - Pokémon Y] Trainer/Wild editors

[BeerDeveloper]

Issue regarding an extracted ROM of Pokémon Y from a .3ds file

• Trainer editor [EDITED with more specific informations]: Program crashes when changing any pokemon data of any trainers and then switch to another trainer. The editor doesn't crash if, after the changes have been done, the window is closed and data is saved. Reopening the editor and then editing other trainers works. Also, the "Dump to .TXT" button doesn't work and results in a crash.
  The error says "value of '65535' is not valid for 'SelectedIndex'", see screenshot:
  

• Wild encounter editor: after automatically changing evolution methods (change all trade evolutions), some pokemon setted as wild encounters make the editor crash with an overflow error. It doesn't always happen but in my experience, if i tried to set Taillow and Pidove in route 2 as grass encounters, it would crash as soon as i clicked "save current encounters". It's almost impossible to edit wild encounters without that crash happening.