Transformer Architecture missing sections in last assignment

The table of contents at the beginning of the assignment lists sections “4.1 Encoder Layer” and “4.2 Full Encoder” but when I scroll down to those sections, 4.2 is missing and what comes after “4.1 Encoder Layer” is the Decoder exercise - the unique cell identifier jumps from UNQ_C4 to UNQ_C7. Did I accidentally delete several sections of the assignment? And if I have, how do I restore them?


A few cells are missing.
See Refresh your Lab Workspace section here
If you’ve already done this, contact coursera help

Thank you @balaji.ambresh, I was able to restore the missing cells.