Using Hyper-V Manager 10.0.19041.1 under Windows 10 Enterprise.
Use Share, not Export, to share a large VM
Result
Some way through, the share stops and leaves a small partially-complete wmcz file with the temporary extension tmp added to it. Repeating the share simply reproduced the same issue.
Expectations
Share creates a complete wmcz file no matter the size of the VM when the resources are sufficient and if they are not, then an error displaying the reason why the creation failed must be displayed and any temporary files are automatically deleted.
Steps to reproduce
Result
Some way through, the share stops and leaves a small partially-complete wmcz file with the temporary extension tmp added to it. Repeating the share simply reproduced the same issue.
Expectations
Share creates a complete wmcz file no matter the size of the VM when the resources are sufficient and if they are not, then an error displaying the reason why the creation failed must be displayed and any temporary files are automatically deleted.