Cryptarithm generating more than 10 rows

[Agilus]

A friend is making a test. If he uses the "Generate Problems" utility in the cryptarithm generator, and then clicks Use on a suggested cipher, his cryptarithm can generate more than 10 rows, including some letters that are not used in the formula. His "values to decode" correctly include only letters that are used in the formula.

After talking to him (because I haven't been able to reproduce it, but he keeps somehow giving me tests with 15 rows), one thing we know is that he hasn't been clicking Check Problem and Update.

But when I told him to try clicking on that, the button was grayed out/not clickable because his cipher had already been saved.

We were able to: add a space to the end of his cipher formula and then remove it to make the "Check Problem" button clickable, and clicking on it fixed the issue with this particular table.

But somehow I think what we really want is for clicking "Save" on a problem that is a cryptarithm, then automatically performs the "Check Problem and Update" step before saving? Or for it to check every time it generates the table that it isn't generating more than 10 rows?