Bugs in content types

In the course presentation, we've used the Single Choice Set activity type. But the "show solution" button doesn't work. Any idea why? thank you. 

Hi,

I would like to use Find multiple hotspots content in Column content but it doesn't appear in the list ?

Is it a bug ?

Regards

Hello!

I have uploaded content - course presentation 1.9.0 in wp. I upgraded it to version 1.17.2 and when i select summary slide i get js error like on screenshots.

TypeError: this.$currentKeyword.position(...) is undefined