Importing image causes bugs

I am working on a project in which bugs appear when a certain image is imported. So as I am developing within the project everything seems to work accordingly, but as soon as I import that certain image bugs start to appear. After I have imported the image, the correct functionality of the game isn’t present. I have tried to import the image in different formats (png,tga) but the issue is still there. Has anyone experienced the issue of having bugs appear when importing images?