Thank you for your post.
This is an issue that was introduced in FileMaker Go 14.0.3. In essence, the last value in a drop-down list will not display. Our Development and Testing departments are aware of this issue.
I have attached your post to the original report. When more information becomes available, I will let you know.
This issue has been addressed in FileMaker Go 14.0.4.
Wonderful! Thanks for the heads up!