@FaheemMitha I don't think so as the issue doesn't look to be about using a web app.

It looks to be related with network settings, server performance / settings, ...

@Rubén Oh. Well, that's too bad. Any suggestions where I might be able to go for help? I've been trying to correspond with the owner, of course. But I get the feeling he doesn't understand much that is going on.

@FaheemMitha Ask on Meta Stack Exchange.

TIL: instead of =array_constrain(array, 1, 1) one can use =+array to the same effect (picking the first array entry). Works with both numeric and text data. Hat tip: Using plus symbol + at the beginning of a formula

@Alex Great finding. Thanks for sharing.