Issues with image loss when using bone or asset warp tool.

Hello , my issue is every time i import my jpg filr from gimp or any other graphic 2D program the image shows but the point of entry of bone or asset wrap the image becomes black on a white backgrand and even when using show or hide within the timeline slection area i still get a black background and when i use vector slection i still get the same reaction. Please help me guys i worked hard to make the charactor in gimp and i just want to make my video.