Hey Mike 
Hm, that sounds like a bug of some description.
Which version of Foundry and version of OSE are you running? They appear to be working fine with 10.291 for Foundry and 1.7.6 for OSE.
This doc explains how to change your Foundry version, and you can select a version of OSE here in the Bazaar. Make sure to Stop and Start your server if you change the OSE version, so that Foundry can pick up the changes. 
I’d recommend you try with these versions and with no other modules enabled.
Could you please open up your dev tools (F12) console, refresh the page, and then try to open the character sheet again? Please post a screenshot of what you see, including any errors you encounter.
Thanks!