fitnesse- drop down value selection

As said by LucasJ the above will work and one thing we need to make sure that there should not be any typo with the choice values while giving in the "VALUE" of | populate field | FIELD_LABEL or [INDEX] or FIELD_LABEL[INDEX] | with value | VALUE |

Hi Lucasj,
I'm using the below script to populate values in a drop-down field via fitnesse script .
| populate field | Country | with | United States |

This is working fine for me upto 10 values in drop down, but failing to set the other values.
Assume that my drop-down has 15 values, I'm able to populate that field using the above script for first 10 values in drop-down, but the same doesn't work for rest of the values to be populated(from 11 to 15) in drop-down.

I'm using Fitnesse version 17.3
Please let me know if any workaround available for the same