DevTest Labs now supports integration with Azure Shared Image Gallery (SIG).
For the scenario you outlined above,
You can extract the images for the VMs you would like to move to a lab
Upload these images to the shared image gallery
Attach the shared image gallery to your lab
Create lab VMs from these images
Upload images to a SIG: https://docs.microsoft.com/en-us/azure/virtual-machines/windows/shared-images-portal
Attach a SIG to a lab: https://docs.microsoft.com/en-us/azure/lab-services/configure-shared-image-gallery
Create a lab VM from a SIG image: https://docs.microsoft.com/en-us/azure/lab-services/add-vm-use-shared-image
An error occurred while saving the commentJohannes commented
in our case - due to a greater outage in west europe, 2 weeks ago (10-11th oct.)
I was forced to re-create the failing VM's - but new the end up being unassociated with the original devTestLab....
seem that the only possible solution is to download/upload vm-images and the re-create them again i a new lab...
Looking so much forward to be able to "import" og "add existing VM's to devTestLab