Some new minor bug fixes are available. You can update from the Unity package manager:

3.0.2

- Updated LDtk json schema classes and samples to 1.1.0 (from 1.0.0)
- Fixed null point fields drawing in the scene when they shouldn't
- Fixed a compilation issue if the NUnit Unity package was not installed
- Fixed some samples not having any collision
- Fixed an exception when trying to import separate level files and added some additional handling

Breaking Change
- Null IntGridTile assets in the inspector will now have grid collision enabled by default (instead of none)
  - This change is to make the beginner experience more friendly for collision
  - You can instead setup no collision for IntGrid values by creating an IntGrid tile asset with collision set to "None", and assign to the importer inspector
  - Updated the samples to reflect this change

3.0.1

- Fixed a major bug identified in 3.0.0 where all levels outside of the first one would not build art tiles