GundamWingFan: As far as I know I have the most up to date version as well as did my best for a clean install with no issue in that regard, but there are no shotgun feats at all and the trigger happy feat is missing too.

Is this intentional or will they be added back in?

The sixth shell feat was awesome.

SpellSword: It may be a bug?

I don't know if the developer frequents the GOG forum but I do know that they are actively patching bugs as they are found so if this was not intended as long as they are made aware of it there will most likely be a patch.

Here is the author's official site:
https://stygiansoftware.com/