Product and version : FileMaker Adv 16.0.5)
OS and version : 10.13.4
Hardware : Mac book Pro Mid 2014
Thank you for your post.
Our Development and Testing departments are aware of this issue under macOS High Sierra 10.13.x with FileMaker Pro 15/16. I have attached your post to the original report. When more information becomes available, I will post again.
In the mean time, as a workaround, click where a new series could be defined and then back on the first.
This issue has been addressed in FileMaker Pro 17 Advanced.
Retrieving data ...