If you have experienced graphics disappearing or being cropped when inserting into a Word document, this is likely to be a result of the way line spacing has been set up. Typically you can only see the very bottom of the image inserted.
If your styles have been set up to have exact line spacing, and an image is inserted into that paragraph, the height of the paragraph will not widen automatically to fit the image in.
For this reason it is better to avoid exact line spacing when setting up styles, and use multiple spacing instead. For example, if you have a font size of 10pt and you want a line spacing of 12pt, set the line spacing to be multiple 1.2 rather than exactly 12 points. That way you'll get the same line spacing for text, but if you insert an image into the paragraph, the height of the paragraph will automatically adjust to accommodate the image.