A new version of Lab 1b (v13) has now been posted in place in that same Google Drive folder here:
https://drive.google.com/drive/folders/1RBHnDguzb8Jas79nXgaKoXyt5BCRs4M3?usp=sharing This new version addresses that Salesforce made to the report interface as part of the Salesforce Summer '22 Release that just completed yesterday. The interface change affected Steps 81, 103 and 138.
The new version of 1b in the Google Drive now accommodates those changes and should be used by all students going forward.