TypeError: Cannot read property 'recording' of undefined
at C:\SBUX\d-ser-t\lib\TranscriptionService.js:83:62
at new Promise ()
at TranscriptionService.internalRecognizer (C:\SBUX\d-ser-t\lib\TranscriptionService.js:56:20)
at C:\SBUX\d-ser-t\lib\TranscriptionService.js:111:101
at Array.map ()
at TranscriptionService.batchTranscribe (C:\SBUX\d-ser-t\lib\TranscriptionService.js:111:45)
at Object.exports.start (C:\SBUX\d-ser-t\lib\main.js:42:23)
at Object. (C:\SBUX\d-ser-t\lib\main.js:74:13)
at Module._compile (internal/modules/cjs/loader.js:774:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:785:10)
Only 4 files and concurrency of 17 causes a crash. Please see below. Setting the concurrency to 2 resolved the problem.