Add Media button not working w/ Jetpack Activated

Same problem here.

Firebug shows this error;

SyntaxError: malformed Unicode character escape sequence
[Break On This Error] 	

__p+='\n\undefined\undefined<style type="text/css" id="'+

load-s...Ymwu.js (line 61, col 5)

I can’t find that snippet anywhere.

Could you post your site URLs here, so I can have a look?

If you want it to remain private, you can also contact us via this contact form:
https://en.support.wordpress.com/contact/?jetpack=needs-service

i am having this problem too. any solution?

@neutraleyes As I mentioned above, could you let me know your site URL so I can have a look at the problem on your site?

https://www.hubcitycycles.ca

Thanks! Could you try to deactivate all other plugins on your site, one at a time, and let me know if you find a conflicting plugin?