You should disable Awesome Story Progression, if you use Twallan's but otherwise they work fine together.

After installing the beta all building tools tool behaved strangely and tried to place the things on the first and second floor, too. Even when the view is on the ground floor. Never had this before I installed the beta.

This even affects the basement tool:


Then I noticed, as already reported at MTS, that the "Max Sliders to 50" increase isn't really working. (In UI.dll -> CASFacialBlendPanel.AddSliderGridItem there is a "20" that needs to be replaced by "50", too).

Apart from that I had no issues, yet.

I have 1.7.9 without WA.