Local JSON Hero failing on 25K line file

[adamreiswig]

I'm inspecting the the JSON from a Grafana Dashboard which is a bit over 25K lines. I'm running JSON Hero locally and until today I've had no issues with it. Pasting in the JSON text, I get the error "Expected double-quoted property name in JSON at position 1048577. (line 1 column 1048578)". When I drag and drop the JSON file, nothing happens.

The JSON validates in JSON Lint so I don't believe that the source is the issue. Is there a size limit in JSON Hero? I have updated both NPM and the local install of JSON Hero but the issue was present even before both updates.