I just newly build my site. I create the following things:
1. Two custom Types. Type U and Type D.
2. Two Custom filed Group. Group C and Group U.
3. Five custom fields(radio, single line and number) under Group U. All CF fields only appear on Type U
4. Three custom fields(all checkboxes) under Group C. All CF fields only appear on Type D.
I want to set "Conditional display" on CF under group C. I click Set condition(s)->Add condition->Select Custom Field. There are only showing 5 CF under Group U, and not seeing any CF under Group C. Why can't I see the 3 CF under Group C in the drop down list?
I am not sure this happens because initially, I assign Group C is under both Type U and Type D. This error happens. Then I modify the Group C to appear on Type D only. It still has the error.
Where we already mentioned that:
Please note that there are few types of post fields you cannot use as conditions for showing other fields. These fields include the Embedded Media, File Fields (Audio, Video, Image and File Upload field), Multiple Checkboxes field and a WYSIWYG Text Area field. Additionally, repeating fields also cannot be used as conditions for showing other fields.
That is why you will not be able to see the checkboxes fields and you can not use checkboxes field for the post conditional display.