- Lea Hayes
- Rotorz Limited
- From: United Kingdom
- Registered: 2014-03-04
- Posts: 638
When you have "Reduce Box Colliders" selected the box colliders are reduced into fewer colliders and so are no longer per-tile. The original colliders are then removed because that's the whole point of that; then if the tile game objects are left entirely empty they too are removed.
You cannot paint or erase tiles from a built tile system. A built tile system is no longer editable.
If you want a regular prefab, just make it in the usual way.
Build Prefab... generates an optimized version of the tile system.