That worked, thanks. I assumed Postman version 4 must have had a different data format since when I exported all my data, importing it didn't work. It must be a different, proprietary format.
Postman only has a v1 and v2 data format. No proprietary format. The formats and the SDKs [1] to use them are also open source. The transformer for converting between versions is also open source [2]. Importing works fine for me. You could leave an issue on Github if you found a bug while importing.
