NLC node fails to connect NLC instance on IBM Cloud Round#2

Starting from around Jan 11th, 2019, NLC node fails to connect NLC instance on IBM Cloud. It was working until Dec 2018. This issue happens on multiple NLC instances on IBM Cloud.

Here is the step to reproduce.

  1. Deploy an NLC instance
  2. Deploy a NodeRed Starter
  3. Connect 1 and 2
  4. Open Node-RED, then import the flow like below.
[{"id":"deb0d57.1c46528","type":"tab","label":"Flow 1"},{"id":"fbbd7582.e039a8","type":"watson-natural-language-classifier","z":"deb0d57.1c46528","name":"train","mode":"create","language":"ja","classifier":"","collections-off":true,"default-endpoint":true,"service-endpoint":"https://gateway.watsonplatform.net/natural-language-classifier/api","x":480,"y":600,"wires":[["c31b252.b9244d8"]]},{"id":"eb232a4.fb939d8","type":"template","z":"deb0d57.1c46528","name":"","field":"payload","fieldType":"msg","format":"handlebars","syntax":"mustache","template":"こんにちは,挨拶\nこんばんは,挨拶\nはじめまして,挨拶\nよろしく,挨拶\nどうも,挨拶\n新規契約したい,新規契約\n携帯電話がほしい,新規契約\n契約したい,新規契約\n乗り換えがしたい,MNP\n番号を継続したい,MNP\nMNPがしたい,MNP\n解約したい,解約\n携帯をやめたい,解約\n契約解除したい,解約","output":"str","x":300,"y":620,"wires":[["fbbd7582.e039a8"]]},{"id":"2a613997.f69466","type":"inject","z":"deb0d57.1c46528","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":120,"y":620,"wires":[["eb232a4.fb939d8"]]},{"id":"c31b252.b9244d8","type":"debug","z":"deb0d57.1c46528","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","x":680,"y":600,"wires":[]}]
  1. Click the inject node, then you can see "Connection to the server has been disconnected" error.