As was just hashed out in the Technical Support Forum, the logicParams container plays silly-buggers when you try to edit its entries.
Your mod needs to have ALL entries from data.xr's logicParams, not just the ones you want to edit - just copy and paste the whole container over into your <mod>_data.xr and edit away.
Your mod needs to have ALL entries from data.xr's logicParams, not just the ones you want to edit - just copy and paste the whole container over into your <mod>_data.xr and edit away.