TeamCity awaits bucket name for Custom S3 (R2) although it's already in the URL

Hello,

I'm experiencing an issue when trying to connect R2 CloudFlare Storage to TeamCity's Artifacts storage feature. Specifically, I select "Custom S3" and add my values, but after clicking "Save," it displays "S3 bucket name is mandatory." When I click on the dropdown, the list is empty and I can't select anything.

My URL looks like this, which is how CloudFlare provides it to me: https://00000000000000000000000000000000.r2.cloudflarestorage.com/my-bucket-name

Best,
Savelii