Any updates on this issue? Is it Java related?..

SweetHome 3D v5.6, Java version 1.8.0_152 / 64 bit / 1.9 GB max Java 3D version 1.6.0.

Tested on my Surface 3 Pro/Windows 10, no problems there, but that one gets updated more regularly...

Thank you!

I assume this is a 3D problem anyhow?

Upon working with it for 30 seconds or so, windows start overlaying each other, jumping around, making it impossible to work (see screenshot)

https://i.imgur.com/5C6YWzo.jpg

Graphics cards are 2 GTX 780s in SLI with updated drivers. Running Windows 7 ...