There is no new Kernel in xenial-proposed to test.
Your proposed fix in Kernel 4.4.0-69 did work and solve the issue, but this fix was removed with Kernel 4.4.0-70 and it is broken again since then.
Even though you had committed a fix, it is now, for unknown reasons, removed and the status "Fix committed" is simply false.
@jsalisbury
There is no new Kernel in xenial-proposed to test.
Your proposed fix in Kernel 4.4.0-69 did work and solve the issue, but this fix was removed with Kernel 4.4.0-70 and it is broken again since then.
Even though you had committed a fix, it is now, for unknown reasons, removed and the status "Fix committed" is simply false.