New Google Sheets custom functions sometimes display “Loading…” indefinitely

Question

SPECIFIC FOR: \"NEW\" google sheets only.

This is a known issue as highlighted by google in the new sheets.

Issues: If you write complex^* custom f

Answer 1

TL;DR - Try duplicating the sheet tab and delete the old one

I struggled with this issue today, and tried some of the approaches mentioned. For various reasons, renaming the function wasn't possible for me.

It was very clear that if I called a my function like this in cell X25:

=myFunction("a", 1, "b", 2, "c", 3)

The cell would be stuck "Loading...", while just changing a parameter slightly (e.g. converting a number to a string) the cell would evaluate fine.

=myFunction("a", "" & 1, "b", 2, "c", 3)

Just copying the code into another cell (e.g. X24) and executing it there seemed to bypass the problem. As soon as I moved it back to the original parameters or cell, it got stuck "Loading..." again. So I would assume it's some kind of caching of "Cell ID", function and parameters that go bonkers on Google's side.

My good-enough solution was to simply duplicate the Sheet tab, delete the old one, and finally rename the new one back to the original name. This solved the problem for me.