Gravatar (still) broken

This is an old favourite: After updating from 2.8.0 to 2.9.2 the avatar pictures are (still) broken. The URL for the avatar is https://www.gravatar.com/avatar/8e0e0920d1b83780d9bd9adf8cefbd92?s=250&d=http%3A%2F%2Fmy.domain.com%2Fmedia%2Fimages%2Favatar.png. This URL redirects to http://i2.wp.com/my.domain.com/media/images/avatar.png which results in a 404 and the error “Sorry, the parameters you provided were not valid”. My “SIte URL” in the configuration is set to http://my.domain.com



Any idea how to solve this issue?

This is an old favourite: After updating from 2.8.0 to 2.9.2 the avatar pictures are (still) broken. The URL for the avatar is https://www.gravatar.com/avatar/8e0e0920d1b83780d9bd9adf8cefbd92?s=250&d=http%3A%2F%2Fmy.domain.com%2Fmedia%2Fimages%2Favatar.png. This URL redirects to http://i2.wp.com/my.domain.com/media/images/avatar.png which results in a 404 and the error “Sorry, the parameters you provided were not valid”. My “SIte URL” in the configuration is set to http://my.domain.com

Any idea how to solve this issue?