Hi, I do have the same problem.
I'm on Yosemite 10.10.5 and Indesign CC 2014.2
It also occurs if I do it on a brand new session on the Mac.
It works as expected on CC 2015 (which I don't use as it is slower than CC 2014).
Did you manage to make it work ?
Ok, I just discovered that it was the add-on "Self Version Control" (https://creative.adobe.com/addons/products/2878) that was causing this issue…
And I see you have installed it :
PMString::GetAsNumber(PMString::ConversionError*, int*) const + 34 1 com.adobe.InDesign.IDSelfVersionControl_CC2014
So we have to contact the developper now.
I send him a mail.
Thank you for your use of this add-on and thank you for your patience. Thanks alexdauchez's email to let me know the issue.
The problem has been fixed and the patch update has passed the review. Please get the new version 1.0.3 which can be found from https://www.adobeexchange.com/store/products/2878.
Sorry for the inconvenience. Really hope you will enjoy the new version.
Thanks a lot,