That’s good to know! Maybe from the perspective of the participant (and you?) the experiment was properly completed, but not from the perspective of PsychoJS. In the forum reply below, I explain how PsychoJS sees it. Come to think of it; I think I’ll start a little list with explanations like these, so that we can collect them in a nice manual later on.
Might this reply help? Data not recording from tablet or smart phone