In the current build, there is a potential bug that'll cause death effects to not trigger and followers to attack simultaneously.

For example, the game SHOULD play like this:

But some people's game MIGHT be bugged like this (death effects will not trigger in this state):

This is due to the language setting of your PC (specifically, whether or not your language use comma (,) for decimals); It's a big oversight on my part. Unfortunately, we are in the process of implementing a number of new features, so I can't upload a hotfix for this right now. sorry...

This will be fixed with the next content update, which will likely be done by next week of the week after that. {Please look forward to it!}