Google classroom, handed in "late" not appearing

[smurfomatic]

Frustrating issue with Google Classroom, which I can't find a solution for!

 

Two pupils in a class haded their work in "late" (past the deadline set in the assignment). Classroom shows work as being submitted, but doesn't show their work! All pupils who handed in "on time" have their Google Form data in the list, but the late ones aren't there at all.

 

Strangely, another pupil who was also late has his results appearing fine...