I noticed a slightly obscure bug with the knockdown skill where it can become disabled.

 

You need to time the knockdown such that the targeted creature dies mid animation, before it connects. I think it also needs to be the last creature in the encounter so the combat state ends, not 100% on that though.

 

After doing this the knockdown skill is grayed out and shows the text "Already activated". This persists through subsequent encounters, and also saving and reloading. It does seem to be re-enabled by returning to town though.

 

Here's a video to show the effect:

 

https://www.youtube.com/watch?v=fJ6MSlaY6Zo

I have seen this before myself, just never been able to reproduce. Good catch!

Hello,

 

Thank you for your post and great video! I have added this issue to our database and our AI programmer will be working to resolve it. I'll also be linking this to the known issues post.

 

Thanks for your support, great find! 

Glad to help!