When saving a BoM table from a drawing to an Excel .xlsx file, some thumbnails are missing.

I'm using SW2023 SP5.0
 

The thumbnail cell is empty, it doesn't look like SW is exporting a blank image as the thumbnail/ the part is out of view of the thumbnail.

I ensure all parts are resolved and I force a rebuild of the assembly before exporting. 

Has anyone found a solution or what causes some parts to not have a thumbnail?

Thank you