TheoryTab Page Bugs

When I first open a TheoryTab page, some pop-up that says “Cancel” appears briefly before scrolling up and disappearing (pictured below).

All the userface options (key, loop, tempo, mixer, anything else that a user may have enabled) used to appear as grey buttons, but now there’s no background to them unless I put a cursor over it (pictured below).

The last bug is that whenever I click on the mixer option, the whole Theorytab just disappears from view (pictured below).