The blue "Conjugate" button doesn't always appear on new verbs

[Wirelizard]

Doing German and plowing through a verb-heavy module right now, and something I noticed every so often in earlier modules has become really, really irritating - the useful blue "Conjugate" button only seems to appear about 80% of the time when a new word is presented!

It's doesn't even appear consistent; sometimes when I have to repeat a lesson I'll get a Conjugate box for a verb I didn't have one for on the previous run through that lesson.

What is up with the random "Conjugate" box, and could you please make sure it always appears?

[dnovinc]

Did you check in your vocabulary if those verbs have conjugation tables ? If they don't that could be the reason why some verbs have a "conjugate" button and others don't.