When you have a single column table, and you attempt to call “setGridWidth”, the table will not update.

This is due to line 3465 (on my copy), which reads:

if (!lvc) { return; }

Since a single column will have index of 0, this ends the function, instead of finishing updating the grid. It should be something like this:

if (lvc === undefined) { return; }

Which would mean there are no visible columns to be resized.

The above code is what I changed locally and it appears to be working as intended.