blockUI prevents TinyMCE 4 plugins from working

blockUI prevents TinyMCE 4 plugins from working

Please see fiddle at  http://fiddle.tinymce.com/bzeaab/16 .   When TinyMCE 4 (v 4.1.5) is hosted in (malsup's) blockUI display, plugins won't allow text editing.  Other, non-text fields in the plugin still work.

Is there a way to allow tinymce 4 plugin fields to get focus while under blockUI?