Have you tried re-initializing the TF? Press and hold the middle footswitch and the encoder while powering up… it'll erase your presets, though. You can press and hold the right footswitch and encoder while powering up and it won't erase your presets, just restore the factory system settings.
Have you recently installed a newer version of the software? You could try reinstalling it, or install an earlier version.
If none of that helps, I'd contact Eventide support directly.
