If I add a mod to my game, range an maybe other settings are reset to default. The settings page still shows the values that were picked but they are not the actual settings anymore. I have to change it to another value, go back to the game and change it again to get it working again.

I've experienced this too - and the fix above works.

If I add a mod to my game, range an maybe other settings are reset to default. The settings page still shows the values that were picked but they are not the actual settings anymore. I have to change it to another value, go back to the game and change it again to get it working again.

can you please let me know what other mods you had installed at the time? i need to test to see if there's a conflicting setting in that one.

The fix is probably to call the same apply_settings() logic from script.on_configuration_changed.

Right now the saved setting still shows 1000, but the actual LuaForce bonuses stop applying after a mod config change. Reapplying these in on_configuration_changed should restore them:

character_build_distance_bonus
character_item_drop_distance_bonus
character_reach_distance_bonus
character_resource_reach_distance_bonus