Hi @AboQados
All the custom image files should be in one location. Wherever these image files are located, ensure that the path is specified under Options > Rendering > Additional Render Appearance Paths. Please see HERE for more information.
If you continue to face errors, it could be because of a jpeg compression,you could convert the jpeg to a PNG format and try running the rendering process. Let me know if you are able to resolve your error.
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