Bump (jus to keep this current and hopefully getting others to test for more data). TS won't be here until tomorrow. But this seems like an very important issue (I have not tested). Nils, It might help to post the information they may need. You stated Mac OS 10.11, have you tested on FM15 as well?
Mac OS 10.10 to 10.11
FileMaker Pro Advanced 14.0.5 and 15.0.1
Thank you for your posts.
Our Development and Testing departments are aware of this issue under Mac OS X for both FileMaker Pro 14 and FileMaker Pro 15. I have attached your post to the original report. When more information becomes available, I will post again.