Hello,
ACF is amazing thank you for your great work.
The issue I am having seems similar to this thread:
http://support.advancedcustomfields.com/forums/topic/relationship-field-loses-post-type-after-save/
Though it is exhibiting differently for me. I have installed the github update included in that thread with no change.
When selecting related post, the post appears in the right column as:
<%= title %>
In addition, when saved, all selections are lost.
Thank you in advance for your assistance.
I have discovered that this issue is a conflict with the theme.