For now the only workaround is using winre.wim from Windows 2016. You need to obtain winre.wim file from 2016. There are several methods to do that, but the easiest way to get it is:
1- Copy from Recovery partition path x:\Recovery\WindowsRE\Winre.wim just assign a letter to Recovery partition.
2- Alternatively, it can be found on windows installation media. You need to find Windows 2016 distributive iso then mount it. Then use following command to mount install.wim (C:\MNT is empty folder to mount)
dism /mount-wim /wimfile:D:\sources\install.wim /index:1 /mountdir:C:\MNT /Readonly
3-Then you can find winre.win in C:\MNT\Windows\System32\Recovery\Winre.wim. Copy it to some place and unmount install.wim with dism /unmount-wim /mountdir:C:\MNT /discard and unmount distributive iso.
When you obtain winre.wim copy it to RMAD server to path C:\ProgramData\Quest\Recovery Manager for Active Directory\Cache\WinRe\10.0\WinRe.wim and run your project again.
If you don't have a Windows Server 2016 image or iso, you may download one directly from Microsoft Site: https://www.microsoft.com/en-us/evalcenter/download-windows-server-2016 Enhancement request ADO-378305
and raised with our Product team, which will be evaluated by our Product team for inclusion in a future release of the product.