Version 19.5 x64
Indesign puts numerous little faces in my original artwork!
Steps to reproduce:
1: Hand draw some artwork
2: Photograph the artwork and save to hard drive
3: Use the "place" feature in InDesign to place the artwork into an INDD file
4: Adjust size via Fit commands
5. Find numerous tiny faces, both apparently drawn and photos e.g. black and white photos of faces, have suddenly appeared in the artwork.

Screenshot is attached with only the most obvious faces circled in green. There are many more.