Rocket.Chat + ADFS (SAML). Importing avatar from AD account does not work

Hi all!
I set up Rocket Chat and ADFS according to the instructions https://docs.rocket.chat/docs/active-directory-federation-services
I also set up custom fields mapping.
But how do I set up avatar import?
I tried adding a claim ADFS with a thumbnail photo. But it didn’t work

Help me please. Thank you