How to change the limit of if values column based on another

Hi,

I have a column of type Choice, in which I have 21 options of incidents.
And I have another column based on this, in which I have an IF formula for each option to be modified to a work area.

However, I get a syntax error. When testing I have identified that it only allows me 20 if values, since when I add one more it marks the syntax error.

This is normal, can it be configured or some alternative that I could follow?

I appreciate your support