Google calendar OAuth 2.0-Client-IDs

Hi, I couldn‘t find a solution for my problem and hope you can help me. I have a problem with the respond of an authorisation. And this in several integrations. E.g. the google calendar. I filled in all the necessary data for the OAuth 2.0-Client-IDs on the google home page and at the end google said it was successful. Then I entered both of the keys into the HA google calendar integration, got a code which I included in google and got again a „ Done! The device is connected.“ from google. All seems to be ok. But the succsessful connection will not be
transmitted to HA. I see the popup with the code only. Whats going wrong here. It would be nice if someone can help me.

try:

  • go to settings
  • go to devices & services
  • go to top right 3 dots
  • remove authentication credentials for calendar
  • start again

Many thanks, now ist working.
What I additional did. I used my Windows PC instead of my Ipad. Maybe also this was a problem.