Nothing happens with hidden fields in 12.
And sliders and popovers are not shown at all.
So a field that is hidden under certain conditions in 13 is hidden in every condition in 12?
no, it´s shown all the time
If making use of FM 13 specific features, then you should require that version at a minimum in your file. Check in the File Options that the minimum version allowed is set to 13.
Those are 13 features. They don't work in 12.
I started with version 8.5. Every time a new version/features came out I had to be careful not to use them in database were the client was still on the old version.
I suggest you do that with this file. Either in the on open script or in the file settings.
Sent from my mobile device... Please excuse typos.