Product and version
FileMaker Pro Advanced 15.0.2 (but does in all versions)
OS and version
Mac OS Sierra 10.12.2
Macbook Pro Retina 15-inch Early 2013, 2.4Ghz Intel Core i7
8GB 1600 MHz DDR3
Horizontal snapping of objects in layout mode no longer works
How to replicate
In layout mode, selecting any object(s) of any time, and holding the shift key while trying to drag them horizontal does not work. Pre Sierra, this would snap them along the horizontal axis, but now it cannot move horizontal, it will only ever go vertical. Incredibly frustrating!
I have not found a workaround. My only way has been to group objects, move them into place, then use inspector top coordinate to manually change to the correct position.