I have a similar problem here…I noticed that some people’s data was not saved properly (some were saved but then after I open it it’s empty), even though those are the people I have full trust that finished the study, but maybe did not quit properly or something to cause the data to not save.
I have a very reliable friend who finished the study, so I went to look for her data but only found a file with an empty participant field and the rest of the study data is also empty. She used Chrome (which should be fine), but I have no clue why her data did not get saved properly. Posting here to see if anyone can provide some clue—thanks in advance!