We are glad that you were able to solve the problem on your side by removing the magnified scale.
We have released a new spacedesk Driver v1.0.47 on our website https://www.spacedesk.net/.
This new version includes a bug fix for the viewer crash in case the client device is using an odd resolution.
Please try this new version with magnified scale and verify if the crash is now fix on your side.
Looking forward to your feedback.