Here is the bug report: Bug#3725530 - Big image in small Bitmap object render problem
Loaded big image (2300*1500 pixels, for example) into small bitmap object (90*60 pixels, for example) starts work like mask/scrollRect when it X coordinate more than 1255 pixels (different from image to image).
The same problem over all platforms (Windows, Android, iOS, Flash Player).
bitmap.cacheAsBitmap = true;
I'd like to ask everyone affected by this issue to take a minute and vote for the following bug.