I've installed the VME Beta Plugin on my Linux VSA. Updated the Console with the new Plugin. My VME Manager is on 8.0.11, so everything should be okay. Added my VME Manager to veeam, created a backup job and deployed(?) a worker. Tried to test the worker and received the following error:
02.12.2025 21:51:55 Succeeded : Testing the worker vme-worker
02.12.2025 21:51:55 Succeeded : Finished searching for uploaded worker VM images
02.12.2025 21:51:55 Failed : Failed to deploy the worker VM: Object reference not set to an instance of an object.
02.12.2025 21:51:55 Failed : Worker vme-worker test failed: Object reference not set to an instance of an object.
Looking at my VME Manager, I can see the uploaded virtual image with a size of 967.9MiB.
After you went through the wizard to add the VME Manager to VBR, did you run through the wizard to deploy the worker to the cluster and test it at that point? From the collected logs, there should be a platform services log in the .\Veeam\Backup\Plugins\HPEMORPHEUSVME folder that might have more information. You could try deploying a new worker as well to see if it reproduces