Swagger Editor throwing 500 for client generation

OS: Windows

Browser: Chrome

Method of installation: npm as well as browser version https://editor.swagger.io/

Swagger Editor throws 500 for client generation for custom yamls as well as their own default Petstore yaml

YAML I used :

1) Petsore Yaml

2)

swagger: '2.0'
info:
title: windchill-parts-sysapi
description: This API will expose the functionality to pull the parts information from Windchill
version: v1
host: blahblah.com
basePath: /blah
schemes:

• https
  x-amf-baseUriParameters:
  loadbalancer:
  enum:
  • api
    paths:
    /change:
    post:
    parameters:
    • x-amf-mediaType: application/json
      in: body
      name: generated
      schema:
      example:
      changeDetails:
      common:
      messageID: '1234567890'
      targetSystem: EBUPLM_NOUNNAME
      startDateTimeInMS: '1546281000000'
      responses:
      '200':
      description: Success
      x-amf-mediaType: application/json
      schema:
      example:
      changeDetailsResponse:
      nounNames:
      - itemName: 'ARRANGEMENT,EXHAUST GAS RECIRCULATION'
      imsName: 'ARRANGEMENT,EXH GAS RCN'
      shortName: 'ARG,RCN'
      status: A
      statusCode: 'N'
      allowableIDType: '27'
      objectNumber: '0000000463'
      modifier1: ARRANGEMENT
      modifier2: EXHAUST
      modifier3: GAS
      modifier4: RECIRCULATION
      modifier5: ''
      sourceControlledIDType: ''
      eswItemName: 'No'
      safetyParts: 'No'
      - itemName: ACCUMULATOR
      imsName: ACCUMULATOR
      shortName: ACM
      status: A
      statusCode: R
      allowableIDType: '10,17,15,16,11'
      objectNumber: '0000000500'
      modifier1: ACCUMULATOR
      modifier2: ''
      modifier3: ''
      modifier4: ''
      modifier5: ''
      sourceControlledIDType: '15-1,17'
      eswItemName: 'No'
      safetyParts: 'No'
      - itemName: 'CALIBRATION,ELECTRONIC ENGINEERING'
      imsName: 'CALIBRATION,ETR EGR'
      shortName: 'CAL,EGR'
      status: I
      statusCode: 'N'
      allowableIDType: '17'
      objectNumber: '0000001171'
      modifier1: CALIBRATION
      modifier2: ELECTRONIC
      modifier3: ENGINEERING
      modifier4: ''
      modifier5: ''
      sourceControlledIDType: ''
      eswItemName: 'No'
      safetyParts: 'No'
      status: success
      message: The data has been fetched successfully
      nounNameCount: 3
      /heartbeat:
      get:
      responses:
      '200':
      description: ''
      x-amf-mediaType: application/json
      schema:
      example:
      applicationName: some-application
      region: DEV
      status: RUNNING

On Swagger Editor, I see 500 in the networks tab, although a zip file is downloaded, it is empty

Steps to reproduce the behavior: Go to 'https://editor.swagger.io/'

Click on '.Generate Client -> csharp OR java'

See Networks tab -> 500, Try to open downloaded zip -> Says it is not a valid zip

Expected a zip with client code in selected language to be downloaded. 

It was working perfectly fine about 15 days ago..Any thoughts about what can be done to fix this?
All help appreciated, Thanks in advance!