[Desktop][Bug] Issue with Strava login - First time connection to Strava from desktop application

[skuill]

Describe the bug
After entering the Client ID and Secret ID from the Strava API settings into the Elevate desktop application, when I press the "Connect to Strava" button, I am redirected to a login form. After entering my email, I receive the error: "An unexpected error occurred. Please try again."

To Reproduce
Steps to reproduce the behavior:

1. Set up the Strava API settings on the Strava website following the "How to get your client Id & secret:" guide.
2. Enter the Client ID and Secret ID into the desktop application.
3. Click on the "Connect to Strava" button.
4. Enter your email address in the login form. My email looks like: [email protected]
5. See error: "An unexpected error occurred. Please try again."

Expected behavior
I expected to be successfully logged into Strava after entering my credentials.

Screenshots

1. The error translated like ""An unexpected error occurred. Please try again.":

2. App settings:

3. I see a request to https://www.strava.com/login in Fiddler, and the response returns a 200. I also see: X-Cache: Miss from cloudfront.

Environment

• OS: Windows 10
• Desktop app version: 7.2.0

Additional context
Add any other context about the problem here.

[skuill]

I also noticed, that the request to https://www.strava.com/login/request_otp returns 403 Forbidden:

It contains: {"success":false}

Any ideas what might be wrong?