RangeError [ERR_BUFFER_OUT_OF_BOUNDS]: Attempt to access memory outside buffer bounds

internal/buffer.js:75
    throw new ERR_BUFFER_OUT_OF_BOUNDS();
    ^

RangeError [ERR_BUFFER_OUT_OF_BOUNDS]: Attempt to access memory outside buffer bounds
    at boundsError (internal/buffer.js:75:11)
    at Buffer.readUInt32BE (internal/buffer.js:300:5)
    at decodeInt (/shared/Projects/cobox-project/core/node_modules/kappa-sparse-indexer/lib/log.js:438:14)
    at Transform.transform [as _transform] (/shared/Projects/cobox-project/core/node_modules/kappa-sparse-indexer/lib/log.js:126:21)
    at Transform._read (_stream_transform.js:191:10)
    at Transform._write (_stream_transform.js:179:12)
    at doWrite (_stream_writable.js:403:12)
    at writeOrBuffer (_stream_writable.js:387:5)
    at Transform.Writable.write (_stream_writable.js:318:11)
    at ReadStream.ondata (/shared/Projects/cobox-project/core/node_modules/level-iterator-stream/node_modules/readable-stream/lib/_stream_readable.js:681:20) {
  code: 'ERR_BUFFER_OUT_OF_BOUNDS'
}

Have escalated to kappa-sparse-indexer