Does the issue occur in the editor or during gameplay? If it occurs during gameplay, please specify which movement system is being used (free movement or grid movement):
Grid Mode
Briefly describe the issue you're experiencing:
If you use change_player(entity["NPC_on_Map"]), when you then try to start a TTB battle, it will error about not having an navigable tiles. This only happens the moment you change_player to a existing NPC on a map.
If you use party.member it will load the battle fine.
Are there any errors in the in-game debug console or external console window?


Provide the steps necessary to reproduce the issue:
- Add a NPC with ID to a map
- play and change_player(THAT_ID)
- start a TTB battle on a different map