Import tool returns empty report if quotes in string fields in the CSV have not been escaped

[pulkit-s]

I was trying to import a csv which included geoJsons. I had not followed https://github.com/datacommonsorg/data/blob/master/docs/formatting_tips.md#emitting-dc-string-values, so I hadn't escaped the quotes. While I was running the tool, I kept getting a result with only API_EmptyDcCallResponse=1. Would expect errors in case the string is badly formatted.
perimeter_sample3.csv

tmcf:
Node: E:processed_data->E0
dcid: C:processed_data->fire_id
typeOf: C:processed_data->typeOf
fireGeoJsonCoordinatesDP1: C:processed_data->geojson_dp1

Report.json:
{
"levelSummary": {
"LEVEL_WARNING": {
"counters": {
"API_EmptyDcCallResponse": "1"
}
}
},
"commandArgs": {
"existenceChecks": true,
"resolution": "RESOLUTION_MODE_LOCAL",
"numThreads": 1,
"statChecks": true,
"observationAbout": false,
"allowNanSvobs": false
}
}