HI there! TexturePacker has changed Unity JSON data(.txt) format and now it’s not compatible with Sprite Importer. Please, update this schema.
I revised the Sprite Asset importer in version 1.5.0-preview.1 and 2.1.0-preview.1. The feature has always only worked with JSON Array because that option only required the free version of TexturePacker.
I can’t remember when we changed the Unity JSON format the last time… must be a long time ago.
@justtime which version of TexturePacker do/did you use?
5.2.0 pro trial