get_template_directory_uri() not working

When I try to use either:
<img src="<?php bloginfo( 'template_directory' ); ?>/assets/somepicture.jpg">
or
<img src="<?php echo get_template_directory_uri(); ?>/assets/somepicture.jpg" >

The theme outputs the HTML like this:
<img somepicture.jpg"="" assets="" gregharrisestates="" themes="" wp-content="" ghe="" test="" fixxed.com="" src"http:="">

I have deactivated all plugins and installed clean/untouched blankslate and the results are the same.

Any insight to this issue? Thank you.