Training data "isn't in the correct format"

Hi folks, I'm trying to import data to train a model and getting the above error. I'm using the latest Xcode, have double checked the formatting in the annotations file, and used jpgrepair to remove any corruption from the data files. Next step is to try a different dataset, but is this a particular known error? (Or am I doing something obviously wrong?)

2019 Intel Mac, Xcode 15.4, macOS Sonoma 14.1.1

Thanks

Adding commas between the JSON objects (i.e. outside the {}) seems to have fixed it, which is strange as I thought commas were only used between properties within an object.

Training data "isn't in the correct format"
 
 
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