generative expand not working

Hi ​@szymon_5776, thanks for reaching out to the Photoshop community! Unfortunately, I was unable to replicate the issue you’re experiencing. Let’s try a few basic troubleshooting steps first:1. 

1. Resetting Photoshop preferences: try manually resetting your Photoshop preferences: https://helpx.adobe.com/ie/photoshop/using/preferences.html#Manuall. Remember to back up your settings before doing the preference reset: https://helpx.adobe.com/ie/photoshop/using/preset-migration.html
2. Test on other media and see if you are still experiencing the same issue.
3. Try different generative models to test if it’s a specific model not expanding.
4. Turn off your GPU and follow these steps: https://helpx.adobe.com/photoshop/desktop/troubleshoot/performance-stability-issues/resolve-graphics-processor-gpu-and-graphics-driver-issues.html

If none of these steps work for you, please let us know and we can continue to troubleshooting the issue. I hope this helps! ^CH

Further information. 
It seems that generative expand works if you expand the original ratio, not a custom.

I do not understand why it cannot fill in a custom ratio when expanded, but that is how it is.

Dear developers, when can you fix this?