List powered by validation on another list resets to first value on save?
Hi There
I have created this validation
that runs from a dropdown i.e. North of Tyne, South of Tyne, etc...
When the colleague selects North of Tyne the "Probation Office" Drop-down Field successfully shows Ashington, Berwick-upon-tweed, Newcastle and Wallsend - So far so good!

However, whenever a colleague selects anything other than "Ashington" and presses save, this field always resets to ashington.
It is reverting back to the first value in the dropdown for all of these lists and I wonder if it is due to the validation in the first field or the options in the 2nd field?
Thank you so much for your help, I am new to Adobe and this is my first community post.
