Hey Bob, let me be more precise, on my studio computer, which has Mavericks as OS, I've created an educational interactive PDF Gant chart for students. This involves a critical path made up of check boxes.
The correct path the student takes results in tick boxes, if the student selects the wrong box the field is erased and they start again. This is an action created in the 'actions' section of buttons and forms.
On testing, this works online on the mac with OS mavericks, also a PC outside the office. But when tested on the home computer with Yosemite OS, the tick boxes appear wherever selected but remain static when incorrect boxes are selected.
I've had the mac checked today and all is operating as should be.
Are there known clitches with CC or InDesign with Yosemite? I Haven't cross checked using CS6.
Neither "online" nor "with Mavericks" or "Yosemite" tells us about how you are trying to read the PDF; you don't mention any PDF reading software.
You seem to think it's because of InDesign, but it may be due to the software you use to view your PDF with. For example, if you use Preview, Mac OS X's own PDF viewer, that is a notoriously bad choice to test advanced functions with. It can display basic PDFs but that is about all. You may want to stick to Adobe's own (free) Reader, and suggest the same to your potential readers.
You may want to stick to Adobe's own (free) Reader, and suggest the same to your potential readers.
I'll go beyond that and say you should do that. Remember, when exporting you are exporting to Adobe PDF. Anything beyond Reader or Acrobat may or may not work. The OP should also be aware that interactive PDFs can be a real crapshoot on mobile devices.