Photoshop crashes if you have a smart object with an advanced transform, and replace content with an image of a different size. To replicate: 1. File/Place Embedded... or File/Place Linked... 2. Edit/Transform/Distort 3. Edit/Transform/Warp 4. Right click layer/Replace Contents... or Relink to File... 5. Crash
Windows 10, Photoshop 2015.5.1
It does not matter if the new object has the same effective size (1000x1000px 300dpi vs 500x500px 150dpi).
This means I can not work with lower resolution files, and use smart objects as intended.