questions marks ??? in some replies instead of letters

example: 

it didn't used to do this

These are my settings

Quote

  "AIResponseParameters": {
    "Frequency Penalty": 0.0,
    "Max Tokens": 999,
    "Model": "gpt-3.5-turbo",
    "Presence Penalty": 0.6,
    "Temperature": 0.9
  },
  "Broadcast Response to the server": true,
  "Chat cool down in seconds": 1,
  "OpenAI_Api_Key": {
    "OpenAI API Key": "sk-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
  },
  "OutboundAPIUrl": {
    "API URL": "https://api.openai.com/v1/chat/completions"
  },
  "Plugin Version": "1.6.5",

Changed Status from Pending to Closed