51 Layout Pop-Up Menu Folder limit…
FileMaker Pro Advanced 11.0v4
Operating system version
Mac OS X 10.6.8
Description of the issue
Only 51 folders will appear in the Layouts Pop-Up menu. Any more than 51 folders and the contents of the 52nd or more seem to appear as though they were never placed within folders.
A full description, with screenshot, can be found on the forum here: