Visual artifacts in old AIR projects running with beta 15

After installing the latest AIR runtime I am seeing a lot visual artifacts in older AIR apps that seem to be related to BitmapData.draw() in conjunction with a transformation matrix. It pretty much always happens when applying a rotation or skew and it also happens with certain offsets.

Here is an example created with Nodewerk (Nodewerk😞

From left to right: original, skew, rotation, offset