I'm missing a UI button.

If it’s already in there, try the usual escalation steps:

  • reimport all
  • remove and reinstall package
  • remove and reinstall ALL packages
  • make a new project, get it there, then move project over, etc.

And make sure you get things to a zero-error condition, even if it requires commenting stuff out.

Sometimes the package system gets borked from all this unnecessary churn and requires the package cache to be cleared:

ALSO:

Make sure your log console selector buttons are enabled. See this graphic: