Review the following steps to troubleshoot the issue related to raster images, which is as follows:

Your constraints may be on. Turn your constraints to None
Is the image file in a supported format? Image files come in a variety of formats, and some types of files (e.g., GIF) may come in different formats of its own. Try opening the image in an image editing program, saving the image as a standard Windows JPG file, and inserting that file as a raster image
Is the image file located in a long file path? Design may not be able to read the file if it is. Try moving the file directly into the C:\ drive and inserting the image from there
The image file may be too large. Design may not be able to insert images that are very large, especially large TIF images. Open them up in an image editing program and reduce the file size or save it as a JPG file and try again.

If the image(s) do not appear when you reopen the drawing:

The image file is no longer on your computer. Images are referenced to the actual file on your computer and will not appear if the file is moved or deleted.

Issue