If you are receiving the error "Oops! There was a problem. Please check again later" when trying to view a matching source on the Enhanced Similarity Report, this is because the source has been deleted after the report was generated and can no longer be viewed.
If you would like to remove this source from view, the paper will need to be resubmitted.
Our engineers are aware of this scenario and improvements to the product messaging are being looked into.
Please refer to our release notes page for further updates on this.