v1.6-beta.1: Can't save file after feeding symbols with JSON…
After creating a list of items in Sketch 3.7 (28169) from a (new 3.7 type) symbol by importing a (tested and error free) JSON file I cannot save the document. That makes Data Populator completely useless for symbols – which let's me stuck in Sketch 3.6.1 :/

Data Populator 1.6-beta.1 (with JSON import) only works with regular folders, not with symbols as far as I experienced it.
Unfortunately I cannot share the files since they are confidential.

Hope it helps,
Aki
