Form Preview show nothing in Visual Studio on VMs

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Posted on by Kai Cheng

I exported VM to local workstation, access it by Hyper-V

When I design a new form in Visual Studio, the preview pane shows nothing.

But when I access another VM by Remote Desktop Connection, the preview pane works well without any extra operation or setting.

I restarted the AOSservice several times, and Visual Studio is up to date as well.

Does anyone know how it happens, and how to resolve it?

Thanks.

Ref:

Form preview not showing - Dynamics 365 Finance Forum Community Forum

Form Preview Is not appearing - Dynamics 365 Finance Forum Community Forum

P.S.: I tried methods mentioned in above two links, but helpless :(.

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Komi Siabi 13,109 Most Valuable Professional on at

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Hi,

Did you restart the entire VM as well ?

In the VHD itself, click restart. When the VM is back, give it fee minutes before opening VS.

If this still does not work , download a new VHD from LCS.

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Kai Cheng on at

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Thank you for your suggestions.

This happened since I export the VM to local desktop one month ago (I didn't realize this until I need to create a new form XD).

The VM and Visual Studio restarted several times, the local desktop did as well.

I will try your last suggestion. Hope it works.

Anyway, thank you for your kindly help.

Warm regards.

Kai Cheng

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André Arnaud de Cal... 301,194 Super User 2025 Season 2 on at

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Hi Kai,

You mentioned that you exported a VM to a local workstation. What was the original topology of this VM? Was it a cloud hosted DEV VM or already a local VHD?

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Kai Cheng on at

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Hi André,

Sorry for late reply.

It was a cloud hosted DEV VM, and other team help me to export it to a VHD.

Is there any difference between them?

Warm regards.

Kai Cheng

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André Arnaud de Cal... 301,194 Super User 2025 Season 2 on at

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Hi Kai,

Yes, there is a difference between them. The local VHD is containing Azure emulators for several services which are not installed on a cloud hosted DEV VM. To be able to have this preview working correctly, you would need to download a "OneBox" VM from the LCS asset library containing the correct configurations and setup.

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Kai Cheng on at

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Hi André,

Thank you so much for your detailed explanation. That's really helpful.

My VMs exported to local workstation are both cloud hosted DEV VMs.

I think that's the point. I shall apply for a "OneBox" VM then.

Warm regards.

Kai Cheng

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