We are really sorry, a problem occured and we did not have automatic notifications about your posts. so they are only seen now. This issue is linked to the GUI.
update your graphic card driver solved the problem is many cases. Also, if you have a computer with to different entities for CPU and GPU, you must force on the GPU during using Flux.
I hope this helps. Sorry again for this late answer!
Altair Employee
I need an answer to this urgently please.